CloudPanel v2.5.3 – [2025-12-04]
MariaDB
/etc/mysql/mariadb.conf.d/100-cloudpanel.cnf
100-cloudpanel.cnf
[mysqld]
pid-file = /var/run/mysqld/mysqld.pid
socket = /var/run/mysqld/mysqld.sock
log-error = /var/log/mysql/error.log
datadir = /home/mysql/
innodb_file_per_table
character-set-server = utf8mb4
collation-server = utf8mb4_general_ci
init-connect = 'SET NAMES utf8mb4'
;slow_query_log = 1
;slow_query_log_file = /var/log/mysql/slow.log
;long_query_time = 2
thread_cache_size = 32
table_open_cache = 2048
sort_buffer_size = 8M
innodb = force
;innodb_buffer_pool_size = 1G
innodb_buffer_pool_size = 512M
innodb_log_file_size = 1GB
innodb_stats_on_metadata = OFF
innodb_buffer_pool_instances = 8
innodb_log_buffer_size = 10M
innodb_flush_log_at_trx_commit = 2
innodb_thread_concurrency = 6
join_buffer_size = 8M
tmp_table_size = 128M
key_buffer_size = 128M
max_allowed_packet = 64M
max_heap_table_size = 128M
read_rnd_buffer_size = 16M
read_buffer_size = 2M
bulk_insert_buffer_size = 64M
max_connections = 512
myisam_sort_buffer_size = 128M
explicit_defaults_for_timestamp = 1
open_files_limit = 65535
table_definition_cache = 1024
table_open_cache = 2048
log_bin_trust_function_creators = 1
disable_log_bin
systemctl restart mariadb
Nginx
/etc/nginx/nginx.conf
nginx.conf
user root;
worker_processes auto;
pid /run/nginx.pid;
worker_rlimit_nofile 8192;
include /etc/nginx/modules-enabled/*.conf;
events {
worker_connections 2000;
# multi_accept on;
}
http {
##
# Basic Settings
##
geoip_country /etc/nginx/geoip/GeoIP.dat; # the country IP database
geoip_city /etc/nginx/geoip/GeoLiteCity.dat; # the city IP database
real_ip_recursive on;
set_real_ip_from 127.0.0.1;
set_real_ip_from 10.0.0.0/8;
set_real_ip_from 172.16.0.0/12;
set_real_ip_from 192.168.0.0/16;
set_real_ip_from 0.0.0.0/0;
#real_ip_header X-Forwarded-For;
log_format main '$remote_addr - $remote_user [$time_local] "$request" '
'$status $body_bytes_sent "$http_referer" '
'"$http_user_agent" "$http_x_forwarded_for"';
log_format cloudflare '$http_cf_connecting_ip - $remote_user [$time_local] "$request" '
'$status $body_bytes_sent "$http_referer" '
'"$http_user_agent" "$http_x_forwarded_for"';
sendfile on;
tcp_nopush on;
tcp_nodelay on;
client_body_buffer_size 1K;
client_header_buffer_size 1k;
client_max_body_size 64M;
keepalive_timeout 65;
types_hash_max_size 2048;
server_names_hash_bucket_size 128;
server_tokens off;
port_in_redirect off;
access_log off;
disable_symlinks if_not_owner from=/home/;
map $scheme $fastcgi_https { ## Detect when HTTPS is used
default off;
https on;
}
include /etc/nginx/blocked_ips;
pagespeed off;
pagespeed XHeaderValue 1;
##
# SSL Settings
##
ssl_protocols TLSv1.2 TLSv1.3;
ssl_session_cache builtin:1000 shared:SSL:10m;
ssl_session_timeout 10m;
ssl_ciphers EECDH+AESGCM:EDH+AESGCM;
ssl_prefer_server_ciphers on;
ssl_conf_command Options KTLS;
ssl_stapling on;
ssl_stapling_verify on;
ssl_dhparam /etc/nginx/ssl/dhparams.pem;
include /etc/nginx/mime.types;
default_type application/octet-stream;
##
# Logging Settings
##
access_log /var/log/nginx/access.log;
error_log /var/log/nginx/error.log;
##
# Limit the requests for php
##
limit_req_zone $binary_remote_addr zone=limit:10m rate=1r/s;
##
# Gzip Settings
##
gzip on;
gzip_disable "msie6";
gzip_vary on;
gzip_proxied any;
gzip_comp_level 8;
gzip_buffers 16 8k;
gzip_http_version 1.1;
gzip_types text/plain text/css application/json application/x-javascript text/xml application/xml application/xml+rss text/javascript image/png image/gif image/jpeg application/javascript image/svg+xml;
##
# Brotli Settings
##
brotli on;
brotli_comp_level 8;
brotli_static on;
brotli_types text/plain text/css application/json application/x-javascript text/xml application/xml application/xml+rss text/javascript image/png image/gif image/jpeg application/javascript image/svg+xml;
##
# Virtual Host Configs
##
include /etc/nginx/sites-enabled/*.conf;
}
large_client_header_buffers 4 32k;
nginx -v
nginx -t
systemctl reload nginx
systemctl restart nginx
PHP
/etc/php/8.5/fpm/php.ini
php.ini
[PHP]
;;;;;;;;;;;;;;;;;;;
; About php.ini ;
;;;;;;;;;;;;;;;;;;;
; PHP's initialization file, generally called php.ini, is responsible for
; configuring many of the aspects of PHP's behavior.
; PHP attempts to find and load this configuration from a number of locations.
; The following is a summary of its search order:
; 1. SAPI module specific location.
; 2. The PHPRC environment variable.
; 3. A number of predefined registry keys on Windows
; 4. Current working directory (except CLI)
; 5. The web server's directory (for SAPI modules), or directory of PHP
; (otherwise in Windows)
; 6. The directory from the --with-config-file-path compile time option, or the
; Windows directory (usually C:\windows)
; See the PHP docs for more specific information.
; https://php.net/configuration.file
; The syntax of the file is extremely simple. Whitespace and lines
; beginning with a semicolon are silently ignored (as you probably guessed).
; Section headers (e.g. [Foo]) are also silently ignored, even though
; they might mean something in the future.
; Directives following the section heading [PATH=/www/mysite] only
; apply to PHP files in the /www/mysite directory. Directives
; following the section heading [HOST=www.example.com] only apply to
; PHP files served from www.example.com. Directives set in these
; special sections cannot be overridden by user-defined INI files or
; at runtime. Currently, [PATH=] and [HOST=] sections only work under
; CGI/FastCGI.
; https://php.net/ini.sections
; Directives are specified using the following syntax:
; directive = value
; Directive names are *case sensitive* - foo=bar is different from FOO=bar.
; Directives are variables used to configure PHP or PHP extensions.
; There is no name validation. If PHP can't find an expected
; directive because it is not set or is mistyped, a default value will be used.
; The value can be a string, a number, a PHP constant (e.g. E_ALL or M_PI), one
; of the INI constants (On, Off, True, False, Yes, No and None) or an expression
; (e.g. E_ALL & ~E_NOTICE), a quoted string ("bar"), or a reference to a
; previously set variable or directive (e.g. ${foo})
; Expressions in the INI file are limited to bitwise operators and parentheses:
; | bitwise OR
; ^ bitwise XOR
; & bitwise AND
; ~ bitwise NOT
; ! boolean NOT
; Boolean flags can be turned on using the values 1, On, True or Yes.
; They can be turned off using the values 0, Off, False or No.
; An empty string can be denoted by simply not writing anything after the equal
; sign, or by using the None keyword:
; foo = ; sets foo to an empty string
; foo = None ; sets foo to an empty string
; foo = "None" ; sets foo to the string 'None'
; If you use constants in your value, and these constants belong to a
; dynamically loaded extension (either a PHP extension or a Zend extension),
; you may only use these constants *after* the line that loads the extension.
;;;;;;;;;;;;;;;;;;;
; About this file ;
;;;;;;;;;;;;;;;;;;;
; PHP comes packaged with two INI files. One that is recommended to be used
; in production environments and one that is recommended to be used in
; development environments.
; php.ini-production contains settings which hold security, performance and
; best practices at its core. But please be aware, these settings may break
; compatibility with older or less security-conscious applications. We
; recommending using the production ini in production and testing environments.
; php.ini-development is very similar to its production variant, except it is
; much more verbose when it comes to errors. We recommend using the
; development version only in development environments, as errors shown to
; application users can inadvertently leak otherwise secure information.
; This is the php.ini-production INI file.
;;;;;;;;;;;;;;;;;;;
; Quick Reference ;
;;;;;;;;;;;;;;;;;;;
; The following are all the settings which are different in either the production
; or development versions of the INIs with respect to PHP's default behavior.
; Please see the actual settings later in the document for more details as to why
; we recommend these changes in PHP's behavior.
; display_errors
; Default Value: On
; Development Value: On
; Production Value: Off
; display_startup_errors
; Default Value: On
; Development Value: On
; Production Value: Off
; error_reporting
; Default Value: E_ALL
; Development Value: E_ALL
; Production Value: E_ALL & ~E_DEPRECATED
; log_errors
; Default Value: Off
; Development Value: On
; Production Value: On
; max_input_time
; Default Value: -1 (Unlimited)
; Development Value: 60 (60 seconds)
; Production Value: 60 (60 seconds)
; mysqlnd.collect_memory_statistics
; Default Value: Off
; Development Value: On
; Production Value: Off
; output_buffering
; Default Value: Off
; Development Value: 4096
; Production Value: 4096
; register_argc_argv
; Default Value: On
; Development Value: Off
; Production Value: Off
; request_order
; Default Value: None
; Development Value: "GP"
; Production Value: "GP"
; session.gc_divisor
; Default Value: 100
; Development Value: 1000
; Production Value: 1000
; short_open_tag
; Default Value: On
; Development Value: Off
; Production Value: Off
; variables_order
; Default Value: "EGPCS"
; Development Value: "GPCS"
; Production Value: "GPCS"
; zend.assertions
; Default Value: 1
; Development Value: 1
; Production Value: -1
; zend.exception_ignore_args
; Default Value: Off
; Development Value: Off
; Production Value: On
; zend.exception_string_param_max_len
; Default Value: 15
; Development Value: 15
; Production Value: 0
;;;;;;;;;;;;;;;;;;;;
; php.ini Options ;
;;;;;;;;;;;;;;;;;;;;
; Name for user-defined php.ini (.htaccess) files. Default is ".user.ini"
;user_ini.filename = ".user.ini"
; To disable this feature set this option to an empty value
;user_ini.filename =
; TTL for user-defined php.ini files (time-to-live) in seconds. Default is 300 seconds (5 minutes)
;user_ini.cache_ttl = 300
;;;;;;;;;;;;;;;;;;;;
; Language Options ;
;;;;;;;;;;;;;;;;;;;;
; Enable the PHP scripting language engine under Apache.
; https://php.net/engine
engine = On
; This directive determines whether or not PHP will recognize code between
; <? and ?> tags as PHP source which should be processed as such. It is
; generally recommended that <?php and ?> should be used and that this feature
; should be disabled, as enabling it may result in issues when generating XML
; documents, however this remains supported for backward compatibility reasons.
; Note that this directive does not control the <?= shorthand tag, which can be
; used regardless of this directive.
; Default Value: On
; Development Value: Off
; Production Value: Off
; https://php.net/short-open-tag
short_open_tag = On
; The number of significant digits displayed in floating point numbers.
; https://php.net/precision
precision = 14
; Output buffering is a mechanism for controlling how much output data
; (excluding headers and cookies) PHP should keep internally before pushing that
; data to the client. If your application's output exceeds this setting, PHP
; will send that data in chunks of roughly the size you specify.
; Turning on this setting and managing its maximum buffer size can yield some
; interesting side-effects depending on your application and web server.
; You may be able to send headers and cookies after you've already sent output
; through print or echo. You also may see performance benefits if your server is
; emitting less packets due to buffered output versus PHP streaming the output
; as it gets it. On production servers, 4096 bytes is a good setting for performance
; reasons.
; Note: Output buffering can also be controlled via Output Buffering Control
; functions.
; Possible Values:
; On = Enabled and buffer is unlimited. (Use with caution)
; Off = Disabled
; Integer = Enables the buffer and sets its maximum size in bytes.
; Note: This directive is hardcoded to Off for the CLI SAPI
; Default Value: Off
; Development Value: 4096
; Production Value: 4096
; https://php.net/output-buffering
output_buffering = 4096
; You can redirect all of the output of your scripts to a function. For
; example, if you set output_handler to "mb_output_handler", character
; encoding will be transparently converted to the specified encoding.
; Setting any output handler automatically turns on output buffering.
; Note: People who wrote portable scripts should not depend on this ini
; directive. Instead, explicitly set the output handler using ob_start().
; Using this ini directive may cause problems unless you know what script
; is doing.
; Note: You cannot use both "mb_output_handler" with "ob_iconv_handler"
; and you cannot use both "ob_gzhandler" and "zlib.output_compression".
; Note: output_handler must be empty if this is set 'On' !!!!
; Instead you must use zlib.output_handler.
; https://php.net/output-handler
;output_handler =
; URL rewriter function rewrites URL on the fly by using
; output buffer. You can set target tags by this configuration.
; "form" tag is special tag. It will add hidden input tag to pass values.
; Refer to session.trans_sid_tags for usage.
; Default Value: "form="
; Development Value: "form="
; Production Value: "form="
;url_rewriter.tags
; URL rewriter will not rewrite absolute URL nor form by default. To enable
; absolute URL rewrite, allowed hosts must be defined at RUNTIME.
; Refer to session.trans_sid_hosts for more details.
; Default Value: ""
; Development Value: ""
; Production Value: ""
;url_rewriter.hosts
; Transparent output compression using the zlib library
; Valid values for this option are 'off', 'on', or a specific buffer size
; to be used for compression (default is 4KB)
; Note: Resulting chunk size may vary due to nature of compression. PHP
; outputs chunks that are few hundreds bytes each as a result of
; compression. If you prefer a larger chunk size for better
; performance, enable output_buffering in addition.
; Note: You need to use zlib.output_handler instead of the standard
; output_handler, or otherwise the output will be corrupted.
; https://php.net/zlib.output-compression
zlib.output_compression = Off
; https://php.net/zlib.output-compression-level
;zlib.output_compression_level = -1
; You cannot specify additional output handlers if zlib.output_compression
; is activated here. This setting does the same as output_handler but in
; a different order.
; https://php.net/zlib.output-handler
;zlib.output_handler =
; Implicit flush tells PHP to tell the output layer to flush itself
; automatically after every output block. This is equivalent to calling the
; PHP function flush() after each and every call to print() or echo() and each
; and every HTML block. Turning this option on has serious performance
; implications and is generally recommended for debugging purposes only.
; https://php.net/implicit-flush
; Note: This directive is hardcoded to On for the CLI SAPI
implicit_flush = Off
; The unserialize callback function will be called (with the undefined class'
; name as parameter), if the unserializer finds an undefined class
; which should be instantiated. A warning appears if the specified function is
; not defined, or if the function doesn't include/implement the missing class.
; So only set this entry, if you really want to implement such a
; callback-function.
unserialize_callback_func =
; The unserialize_max_depth specifies the default depth limit for unserialized
; structures. Setting the depth limit too high may result in stack overflows
; during unserialization. The unserialize_max_depth ini setting can be
; overridden by the max_depth option on individual unserialize() calls.
; A value of 0 disables the depth limit.
;unserialize_max_depth = 4096
; When floats & doubles are serialized, store serialize_precision significant
; digits after the floating point. The default value ensures that when floats
; are decoded with unserialize, the data will remain the same.
; The value is also used for json_encode when encoding double values.
; If -1 is used, then dtoa mode 0 is used which automatically select the best
; precision.
serialize_precision = -1
; open_basedir, if set, limits all file operations to the defined directory
; and below. This directive makes most sense if used in a per-directory
; or per-virtualhost web server configuration file.
; Note: disables the realpath cache
; https://php.net/open-basedir
;open_basedir =
; This directive allows you to disable certain functions.
; It receives a comma-delimited list of function names.
; https://php.net/disable-functions
disable_functions =
; This directive allows you to disable certain classes.
; It receives a comma-delimited list of class names.
; https://php.net/disable-classes
disable_classes =
; Colors for Syntax Highlighting mode. Anything that's acceptable in
; <span style="color: ???????"> would work.
; https://php.net/syntax-highlighting
;highlight.string = #DD0000
;highlight.comment = #FF9900
;highlight.keyword = #007700
;highlight.default = #0000BB
;highlight.html = #000000
; If enabled, the request will be allowed to complete even if the user aborts
; the request. Consider enabling it if executing long requests, which may end up
; being interrupted by the user or a browser timing out. PHP's default behavior
; is to disable this feature.
; https://php.net/ignore-user-abort
;ignore_user_abort = On
; Determines the size of the realpath cache to be used by PHP. This value should
; be increased on systems where PHP opens many files to reflect the quantity of
; the file operations performed.
; Note: if open_basedir is set, the cache is disabled
; https://php.net/realpath-cache-size
realpath_cache_size = 4096k
; Duration of time, in seconds for which to cache realpath information for a given
; file or directory. For systems with rarely changing files, consider increasing this
; value.
; https://php.net/realpath-cache-ttl
realpath_cache_ttl = 86400
; Enables or disables the circular reference collector.
; https://php.net/zend.enable-gc
zend.enable_gc = On
; If enabled, scripts may be written in encodings that are incompatible with
; the scanner. CP936, Big5, CP949 and Shift_JIS are the examples of such
; encodings. To use this feature, mbstring extension must be enabled.
;zend.multibyte = Off
; Allows to set the default encoding for the scripts. This value will be used
; unless "declare(encoding=...)" directive appears at the top of the script.
; Only affects if zend.multibyte is set.
;zend.script_encoding =
; Allows to include or exclude arguments from stack traces generated for exceptions.
; In production, it is recommended to turn this setting on to prohibit the output
; of sensitive information in stack traces
; Default Value: Off
; Development Value: Off
; Production Value: On
zend.exception_ignore_args = On
; Allows setting the maximum string length in an argument of a stringified stack trace
; to a value between 0 and 1000000.
; This has no effect when zend.exception_ignore_args is enabled.
; Default Value: 15
; Development Value: 15
; Production Value: 0
; In production, it is recommended to set this to 0 to reduce the output
; of sensitive information in stack traces.
zend.exception_string_param_max_len = 0
;;;;;;;;;;;;;;;;;
; Miscellaneous ;
;;;;;;;;;;;;;;;;;
; Decides whether PHP may expose the fact that it is installed on the server
; (e.g. by adding its signature to the Web server header). It is no security
; threat in any way, but it makes it possible to determine whether you use PHP
; on your server or not.
; https://php.net/expose-php
expose_php = Off
;;;;;;;;;;;;;;;;;;;
; Resource Limits ;
;;;;;;;;;;;;;;;;;;;
; Maximum execution time of each script, in seconds
; https://php.net/max-execution-time
; Note: This directive is hardcoded to 0 for the CLI SAPI
max_execution_time = 90
; Maximum amount of time each script may spend parsing request data. It's a good
; idea to limit this time on productions servers in order to eliminate unexpectedly
; long running scripts.
; Note: This directive is hardcoded to -1 for the CLI SAPI
; Default Value: -1 (Unlimited)
; Development Value: 60 (60 seconds)
; Production Value: 60 (60 seconds)
; https://php.net/max-input-time
max_input_time = 90
; Maximum input variable nesting level
; https://php.net/max-input-nesting-level
;max_input_nesting_level = 64
; How many GET/POST/COOKIE input variables may be accepted
max_input_vars = 20000
; How many multipart body parts (combined input variable and file uploads) may
; be accepted.
; Default Value: -1 (Sum of max_input_vars and max_file_uploads)
;max_multipart_body_parts = 1500
; Maximum amount of memory a script may consume
; https://php.net/memory-limit
memory_limit = 768M
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
; Error handling and logging ;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
; This directive informs PHP of which errors, warnings and notices you would like
; it to take action for. The recommended way of setting values for this
; directive is through the use of the error level constants and bitwise
; operators. The error level constants are below here for convenience as well as
; some common settings and their meanings.
; By default, PHP is set to take action on all errors, notices and warnings EXCEPT
; those related to E_NOTICE, which together cover best practices and
; recommended coding standards in PHP. For performance reasons, this is the
; recommend error reporting setting. Your production server shouldn't be wasting
; resources complaining about best practices and coding standards. That's what
; development servers and development settings are for.
; Note: The php.ini-development file has this setting as E_ALL. This
; means it pretty much reports everything which is exactly what you want during
; development and early testing.
;
; Error Level Constants:
; E_ALL - All errors and warnings
; E_ERROR - fatal run-time errors
; E_RECOVERABLE_ERROR - almost fatal run-time errors
; E_WARNING - run-time warnings (non-fatal errors)
; E_PARSE - compile-time parse errors
; E_NOTICE - run-time notices (these are warnings which often result
; from a bug in your code, but it's possible that it was
; intentional (e.g., using an uninitialized variable and
; relying on the fact it is automatically initialized to an
; empty string)
; E_CORE_ERROR - fatal errors that occur during PHP's initial startup
; E_CORE_WARNING - warnings (non-fatal errors) that occur during PHP's
; initial startup
; E_COMPILE_ERROR - fatal compile-time errors
; E_COMPILE_WARNING - compile-time warnings (non-fatal errors)
; E_USER_ERROR - user-generated error message
; E_USER_WARNING - user-generated warning message
; E_USER_NOTICE - user-generated notice message
; E_DEPRECATED - warn about code that will not work in future versions
; of PHP
; E_USER_DEPRECATED - user-generated deprecation warnings
;
; Common Values:
; E_ALL (Show all errors, warnings and notices including coding standards.)
; E_ALL & ~E_NOTICE (Show all errors, except for notices)
; E_COMPILE_ERROR|E_RECOVERABLE_ERROR|E_ERROR|E_CORE_ERROR (Show only errors)
; Default Value: E_ALL
; Development Value: E_ALL
; Production Value: E_ALL & ~E_DEPRECATED
; https://php.net/error-reporting
error_reporting = E_ALL & ~E_DEPRECATED
; This directive controls whether or not and where PHP will output errors,
; notices and warnings too. Error output is very useful during development, but
; it could be very dangerous in production environments. Depending on the code
; which is triggering the error, sensitive information could potentially leak
; out of your application such as database usernames and passwords or worse.
; For production environments, we recommend logging errors rather than
; sending them to STDOUT.
; Possible Values:
; Off = Do not display any errors
; stderr = Display errors to STDERR (affects only CGI/CLI binaries!)
; On or stdout = Display errors to STDOUT
; Default Value: On
; Development Value: On
; Production Value: Off
; https://php.net/display-errors
display_errors = Off
; The display of errors which occur during PHP's startup sequence are handled
; separately from display_errors. We strongly recommend you set this to 'off'
; for production servers to avoid leaking configuration details.
; Default Value: On
; Development Value: On
; Production Value: Off
; https://php.net/display-startup-errors
display_startup_errors = Off
; Besides displaying errors, PHP can also log errors to locations such as a
; server-specific log, STDERR, or a location specified by the error_log
; directive found below. While errors should not be displayed on productions
; servers they should still be monitored and logging is a great way to do that.
; Default Value: Off
; Development Value: On
; Production Value: On
; https://php.net/log-errors
log_errors = On
; Do not log repeated messages. Repeated errors must occur in same file on same
; line unless ignore_repeated_source is set true.
; https://php.net/ignore-repeated-errors
ignore_repeated_errors = Off
; Ignore source of message when ignoring repeated messages. When this setting
; is On you will not log errors with repeated messages from different files or
; source lines.
; https://php.net/ignore-repeated-source
ignore_repeated_source = Off
; If this parameter is set to Off, then memory leaks will not be shown (on
; stdout or in the log). This is only effective in a debug compile, and if
; error reporting includes E_WARNING in the allowed list
; https://php.net/report-memleaks
report_memleaks = On
; This setting is off by default.
;report_zend_debug = 0
; Turn off normal error reporting and emit XML-RPC error XML
; https://php.net/xmlrpc-errors
;xmlrpc_errors = 0
; An XML-RPC faultCode
;xmlrpc_error_number = 0
; When PHP displays or logs an error, it has the capability of formatting the
; error message as HTML for easier reading. This directive controls whether
; the error message is formatted as HTML or not.
; Note: This directive is hardcoded to Off for the CLI SAPI
; https://php.net/html-errors
;html_errors = On
; If html_errors is set to On *and* docref_root is not empty, then PHP
; produces clickable error messages that direct to a page describing the error
; or function causing the error in detail.
; You can download a copy of the PHP manual from https://php.net/docs
; and change docref_root to the base URL of your local copy including the
; leading '/'. You must also specify the file extension being used including
; the dot. PHP's default behavior is to leave these settings empty, in which
; case no links to documentation are generated.
; Note: Never use this feature for production boxes.
; https://php.net/docref-root
; Examples
;docref_root = "/phpmanual/"
; https://php.net/docref-ext
;docref_ext = .html
; String to output before an error message. PHP's default behavior is to leave
; this setting blank.
; https://php.net/error-prepend-string
; Example:
;error_prepend_string = "<span style='color: #ff0000'>"
; String to output after an error message. PHP's default behavior is to leave
; this setting blank.
; https://php.net/error-append-string
; Example:
;error_append_string = "</span>"
; Log errors to specified file. PHP's default behavior is to leave this value
; empty.
; https://php.net/error-log
; Example:
;error_log = php_errors.log
; Log errors to syslog (Event Log on Windows).
;error_log = syslog
; The syslog ident is a string which is prepended to every message logged
; to syslog. Only used when error_log is set to syslog.
;syslog.ident = php
; The syslog facility is used to specify what type of program is logging
; the message. Only used when error_log is set to syslog.
;syslog.facility = user
; Set this to disable filtering control characters (the default).
; Some loggers only accept NVT-ASCII, others accept anything that's not
; control characters. If your logger accepts everything, then no filtering
; is needed at all.
; Allowed values are:
; ascii (all printable ASCII characters and NL)
; no-ctrl (all characters except control characters)
; all (all characters)
; raw (like "all", but messages are not split at newlines)
; https://php.net/syslog.filter
;syslog.filter = ascii
;windows.show_crt_warning
; Default value: 0
; Development value: 0
; Production value: 0
; This directive controls whether PHP will output the backtrace of fatal errors.
; Default Value: On
; Development Value: On
; Production Value: On
;fatal_error_backtraces = On
;;;;;;;;;;;;;;;;;
; Data Handling ;
;;;;;;;;;;;;;;;;;
; The separator used in PHP generated URLs to separate arguments.
; PHP's default setting is "&".
; https://php.net/arg-separator.output
; Example:
;arg_separator.output = "&"
; List of separator(s) used by PHP to parse input URLs into variables.
; PHP's default setting is "&".
; NOTE: Every character in this directive is considered as separator!
; https://php.net/arg-separator.input
; Example:
;arg_separator.input = ";&"
; This directive determines which super global arrays are registered when PHP
; starts up. G,P,C,E & S are abbreviations for the following respective super
; globals: GET, POST, COOKIE, ENV and SERVER. There is a performance penalty
; paid for the registration of these arrays and because ENV is not as commonly
; used as the others, ENV is not recommended on productions servers. You
; can still get access to the environment variables through getenv() should you
; need to.
; Default Value: "EGPCS"
; Development Value: "GPCS"
; Production Value: "GPCS";
; https://php.net/variables-order
variables_order = "GPCS"
; This directive determines which super global data (G,P & C) should be
; registered into the super global array REQUEST. If so, it also determines
; the order in which that data is registered. The values for this directive
; are specified in the same manner as the variables_order directive,
; EXCEPT one. Leaving this value empty will cause PHP to use the value set
; in the variables_order directive. It does not mean it will leave the super
; globals array REQUEST empty.
; Default Value: None
; Development Value: "GP"
; Production Value: "GP"
; https://php.net/request-order
request_order = "GP"
; This directive determines whether PHP registers $argv & $argc each time it
; runs. $argv contains an array of all the arguments passed to PHP when a script
; is invoked. $argc contains an integer representing the number of arguments
; that were passed when the script was invoked. These arrays are extremely
; useful when running scripts from the command line. When this directive is
; enabled, registering these variables consumes CPU cycles and memory each time
; a script is executed. For performance reasons, this feature should be disabled
; on production servers.
; Note: This directive is hardcoded to On for the CLI SAPI
; Default Value: On
; Development Value: Off
; Production Value: Off
; https://php.net/register-argc-argv
register_argc_argv = Off
; When enabled, the ENV, REQUEST and SERVER variables are created when they're
; first used (Just In Time) instead of when the script starts. If these
; variables are not used within a script, having this directive on will result
; in a performance gain. The PHP directive register_argc_argv must be disabled
; for this directive to have any effect.
; https://php.net/auto-globals-jit
auto_globals_jit = On
; Whether PHP will read the POST data.
; This option is enabled by default.
; Most likely, you won't want to disable this option globally. It causes $_POST
; and $_FILES to always be empty; the only way you will be able to read the
; POST data will be through the php://input stream wrapper. This can be useful
; to proxy requests or to process the POST data in a memory efficient fashion.
; https://php.net/enable-post-data-reading
;enable_post_data_reading = Off
; Maximum size of POST data that PHP will accept.
; Its value may be 0 to disable the limit. It is ignored if POST data reading
; is disabled through enable_post_data_reading.
; https://php.net/post-max-size
post_max_size = 100M
; Automatically add files before PHP document.
; https://php.net/auto-prepend-file
auto_prepend_file =
; Automatically add files after PHP document.
; https://php.net/auto-append-file
auto_append_file =
; By default, PHP will output a media type using the Content-Type header. To
; disable this, simply set it to be empty.
;
; PHP's built-in default media type is set to text/html.
; https://php.net/default-mimetype
default_mimetype = "text/html"
; PHP's default character set is set to UTF-8.
; https://php.net/default-charset
default_charset = "UTF-8"
; PHP internal character encoding is set to empty.
; If empty, default_charset is used.
; https://php.net/internal-encoding
;internal_encoding =
; PHP input character encoding is set to empty.
; If empty, default_charset is used.
; https://php.net/input-encoding
;input_encoding =
; PHP output character encoding is set to empty.
; If empty, default_charset is used.
; See also output_buffer.
; https://php.net/output-encoding
;output_encoding =
;;;;;;;;;;;;;;;;;;;;;;;;;
; Paths and Directories ;
;;;;;;;;;;;;;;;;;;;;;;;;;
; UNIX: "/path1:/path2"
;include_path = ".:/usr/share/php"
;
; Windows: "\path1;\path2"
;include_path = ".;c:\php\includes"
;
; PHP's default setting for include_path is ".;/path/to/php/pear"
; https://php.net/include-path
; The root of the PHP pages, used only if nonempty.
; if PHP was not compiled with FORCE_REDIRECT, you SHOULD set doc_root
; if you are running php as a CGI under any web server (other than IIS)
; see documentation for security issues. The alternate is to use the
; cgi.force_redirect configuration below
; https://php.net/doc-root
doc_root =
; The directory under which PHP opens the script using /~username used only
; if nonempty.
; https://php.net/user-dir
user_dir =
; Directory in which the loadable extensions (modules) reside.
; https://php.net/extension-dir
;extension_dir = "./"
; On windows:
;extension_dir = "ext"
; Directory where the temporary files should be placed.
; Defaults to the system default (see sys_get_temp_dir)
;sys_temp_dir = "/tmp"
; Whether or not to enable the dl() function. The dl() function does NOT work
; properly in multithreaded servers, such as IIS or Zeus, and is automatically
; disabled on them.
; https://php.net/enable-dl
enable_dl = Off
; cgi.force_redirect is necessary to provide security running PHP as a CGI under
; most web servers. Left undefined, PHP turns this on by default. You can
; turn it off here AT YOUR OWN RISK
; **You CAN safely turn this off for IIS, in fact, you MUST.**
; https://php.net/cgi.force-redirect
;cgi.force_redirect = 1
; if cgi.nph is enabled it will force cgi to always sent Status: 200 with
; every request. PHP's default behavior is to disable this feature.
;cgi.nph = 1
; if cgi.force_redirect is turned on, and you are not running under Apache or Netscape
; (iPlanet) web servers, you MAY need to set an environment variable name that PHP
; will look for to know it is OK to continue execution. Setting this variable MAY
; cause security issues, KNOW WHAT YOU ARE DOING FIRST.
; https://php.net/cgi.redirect-status-env
;cgi.redirect_status_env =
; cgi.fix_pathinfo provides *real* PATH_INFO/PATH_TRANSLATED support for CGI. PHP's
; previous behaviour was to set PATH_TRANSLATED to SCRIPT_FILENAME, and to not grok
; what PATH_INFO is. For more information on PATH_INFO, see the cgi specs. Setting
; this to 1 will cause PHP CGI to fix its paths to conform to the spec. A setting
; of zero causes PHP to behave as before. Default is 1. You should fix your scripts
; to use SCRIPT_FILENAME rather than PATH_TRANSLATED.
; https://php.net/cgi.fix-pathinfo
;cgi.fix_pathinfo=1
; if cgi.discard_path is enabled, the PHP CGI binary can safely be placed outside
; of the web tree and people will not be able to circumvent .htaccess security.
;cgi.discard_path=1
; FastCGI under IIS supports the ability to impersonate
; security tokens of the calling client. This allows IIS to define the
; security context that the request runs under. mod_fastcgi under Apache
; does not currently support this feature (03/17/2002)
; Set to 1 if running under IIS. Default is zero.
; https://php.net/fastcgi.impersonate
;fastcgi.impersonate = 1
; Prevent decoding of SCRIPT_FILENAME when using Apache ProxyPass or
; ProxyPassMatch. This should only be used if script file paths are already
; stored in an encoded format on the file system.
; Default is 0.
;fastcgi.script_path_encoded = 1
; Disable logging through FastCGI connection. PHP's default behavior is to enable
; this feature.
;fastcgi.logging = 0
; cgi.rfc2616_headers configuration option tells PHP what type of headers to
; use when sending HTTP response code. If set to 0, PHP sends Status: header that
; is supported by Apache. When this option is set to 1, PHP will send
; RFC2616 compliant header.
; Default is zero.
; https://php.net/cgi.rfc2616-headers
;cgi.rfc2616_headers = 0
; cgi.check_shebang_line controls whether CGI PHP checks for line starting with #!
; (shebang) at the top of the running script. This line might be needed if the
; script support running both as stand-alone script and via PHP CGI<. PHP in CGI
; mode skips this line and ignores its content if this directive is turned on.
; https://php.net/cgi.check-shebang-line
;cgi.check_shebang_line=1
;;;;;;;;;;;;;;;;
; File Uploads ;
;;;;;;;;;;;;;;;;
; Whether to allow HTTP file uploads.
; https://php.net/file-uploads
file_uploads = On
; Temporary directory for HTTP uploaded files (will use system default if not
; specified).
; https://php.net/upload-tmp-dir
;upload_tmp_dir =
; Maximum allowed size for uploaded files.
; https://php.net/upload-max-filesize
upload_max_filesize = 100M
; Maximum number of files that can be uploaded via a single request
max_file_uploads = 20
;;;;;;;;;;;;;;;;;;
; Fopen wrappers ;
;;;;;;;;;;;;;;;;;;
; Whether to allow the treatment of URLs (like http:// or ftp://) as files.
; https://php.net/allow-url-fopen
allow_url_fopen = On
; Whether to allow include/require to open URLs (like https:// or ftp://) as files.
; https://php.net/allow-url-include
allow_url_include = Off
; Define the anonymous ftp password (your email address). PHP's default setting
; for this is empty.
; https://php.net/from
;from="[email protected]"
; Define the User-Agent string. PHP's default setting for this is empty.
; https://php.net/user-agent
;user_agent="PHP"
; Default timeout for socket based streams (seconds)
; https://php.net/default-socket-timeout
default_socket_timeout = 60
; If your scripts have to deal with files from Macintosh systems,
; or you are running on a Mac and need to deal with files from
; unix or win32 systems, setting this flag will cause PHP to
; automatically detect the EOL character in those files so that
; fgets() and file() will work regardless of the source of the file.
; https://php.net/auto-detect-line-endings
;auto_detect_line_endings = Off
;;;;;;;;;;;;;;;;;;;;;;
; Dynamic Extensions ;
;;;;;;;;;;;;;;;;;;;;;;
; If you wish to have an extension loaded automatically, use the following
; syntax:
;
; extension=modulename
;
; For example:
;
; extension=mysqli
;
; When the extension library to load is not located in the default extension
; directory, You may specify an absolute path to the library file:
;
; extension=/path/to/extension/mysqli.so
;
; Note : The syntax used in previous PHP versions ('extension=<ext>.so' and
; 'extension='php_<ext>.dll') is supported for legacy reasons and may be
; deprecated in a future PHP major version. So, when it is possible, please
; move to the new ('extension=<ext>) syntax.
;
; Notes for Windows environments :
;
; - Many DLL files are located in the ext/
; extension folders as well as the separate PECL DLL download.
; Be sure to appropriately set the extension_dir directive.
;
;extension=bz2
;extension=curl
;extension=exif
;extension=ffi
;extension=ftp
;extension=fileinfo
;extension=gd
;extension=gettext
;extension=gmp
;extension=intl
;extension=ldap
;extension=mbstring
;extension=mysqli
;extension=odbc
;extension=openssl
;extension=pdo_firebird
;extension=pdo_mysql
;extension=pdo_odbc
;extension=pdo_pgsql
;extension=pdo_sqlite
;extension=pgsql
;extension=shmop
; The MIBS data available in the PHP distribution must be installed.
; See https://www.php.net/manual/en/snmp.installation.php
;extension=snmp
;extension=soap
;extension=sockets
;extension=sodium
;extension=sqlite3
;extension=tidy
;extension=xsl
;extension=zip
;;;;;;;;;;;;;;;;;;;
; Module Settings ;
;;;;;;;;;;;;;;;;;;;
[CLI Server]
; Whether the CLI web server uses ANSI color coding in its terminal output.
cli_server.color = On
[Date]
; Defines the default timezone used by the date functions
; https://php.net/date.timezone
date.timezone = Europe/Berlin
; https://php.net/date.default-latitude
;date.default_latitude = 31.7667
; https://php.net/date.default-longitude
;date.default_longitude = 35.2333
; https://php.net/date.sunrise-zenith
;date.sunrise_zenith = 90.833333
; https://php.net/date.sunset-zenith
;date.sunset_zenith = 90.833333
[filter]
; https://php.net/filter.default
;filter.default = unsafe_raw
; https://php.net/filter.default-flags
;filter.default_flags =
[iconv]
; Use of this INI entry is deprecated, use global input_encoding instead.
; If empty, default_charset or input_encoding or iconv.input_encoding is used.
; The precedence is: default_charset < input_encoding < iconv.input_encoding
;iconv.input_encoding =
; Use of this INI entry is deprecated, use global internal_encoding instead.
; If empty, default_charset or internal_encoding or iconv.internal_encoding is used.
; The precedence is: default_charset < internal_encoding < iconv.internal_encoding
;iconv.internal_encoding =
; Use of this INI entry is deprecated, use global output_encoding instead.
; If empty, default_charset or output_encoding or iconv.output_encoding is used.
; The precedence is: default_charset < output_encoding < iconv.output_encoding
; To use an output encoding conversion, iconv's output handler must be set
; otherwise output encoding conversion cannot be performed.
;iconv.output_encoding =
[intl]
;intl.default_locale =
; This directive allows you to produce PHP errors when some error
; happens within intl functions. The value is the level of the error produced.
; Default is 0, which does not produce any errors.
;intl.error_level = E_WARNING
;intl.use_exceptions = 0
[sqlite3]
; Directory pointing to SQLite3 extensions
; https://php.net/sqlite3.extension-dir
;sqlite3.extension_dir =
; SQLite defensive mode flag (only available from SQLite 3.26+)
; When the defensive flag is enabled, language features that allow ordinary
; SQL to deliberately corrupt the database file are disabled. This forbids
; writing directly to the schema, shadow tables (eg. FTS data tables), or
; the sqlite_dbpage virtual table.
; https://www.sqlite.org/c3ref/c_dbconfig_defensive.html
; (for older SQLite versions, this flag has no use)
;sqlite3.defensive = 1
[Pcre]
; PCRE library backtracking limit.
; https://php.net/pcre.backtrack-limit
;pcre.backtrack_limit=100000
; PCRE library recursion limit.
; Please note that if you set this value to a high number you may consume all
; the available process stack and eventually crash PHP (due to reaching the
; stack size limit imposed by the Operating System).
; https://php.net/pcre.recursion-limit
;pcre.recursion_limit=100000
; Enables or disables JIT compilation of patterns. This requires the PCRE
; library to be compiled with JIT support.
;pcre.jit=1
[Pdo]
; Whether to pool ODBC connections. Can be one of "strict", "relaxed" or "off"
; https://php.net/pdo-odbc.connection-pooling
;pdo_odbc.connection_pooling=strict
[Pdo_mysql]
; Default socket name for local MySQL connects. If empty, uses the built-in
; MySQL defaults.
pdo_mysql.default_socket=
[Phar]
; https://php.net/phar.readonly
;phar.readonly = On
; https://php.net/phar.require-hash
;phar.require_hash = On
;phar.cache_list =
[mail function]
; For Win32 only.
; https://php.net/smtp
SMTP = localhost
; https://php.net/smtp-port
smtp_port = 25
; For Win32 only.
; https://php.net/sendmail-from
;sendmail_from = [email protected]
; For Unix only. You may supply arguments as well (default: "sendmail -t -i").
; https://php.net/sendmail-path
;sendmail_path =
; Force the addition of the specified parameters to be passed as extra parameters
; to the sendmail binary. These parameters will always replace the value of
; the 5th parameter to mail().
;mail.force_extra_parameters =
; Add X-PHP-Originating-Script: that will include uid of the script followed by the filename
mail.add_x_header = Off
; Use mixed LF and CRLF line separators to keep compatibility with some
; RFC 2822 non conformant MTA.
mail.mixed_lf_and_crlf = Off
; The path to a log file that will log all mail() calls. Log entries include
; the full path of the script, line number, To address and headers.
;mail.log =
; Log mail to syslog (Event Log on Windows).
;mail.log = syslog
[ODBC]
; https://php.net/odbc.default-db
;odbc.default_db = Not yet implemented
; https://php.net/odbc.default-user
;odbc.default_user = Not yet implemented
; https://php.net/odbc.default-pw
;odbc.default_pw = Not yet implemented
; Controls the ODBC cursor model.
; Default: SQL_CURSOR_STATIC (default).
;odbc.default_cursortype
; Allow or prevent persistent links.
; https://php.net/odbc.allow-persistent
odbc.allow_persistent = On
; Check that a connection is still valid before reuse.
; https://php.net/odbc.check-persistent
odbc.check_persistent = On
; Maximum number of persistent links. -1 means no limit.
; https://php.net/odbc.max-persistent
odbc.max_persistent = -1
; Maximum number of links (persistent + non-persistent). -1 means no limit.
; https://php.net/odbc.max-links
odbc.max_links = -1
; Handling of LONG fields. Returns number of bytes to variables. 0 means
; passthru.
; https://php.net/odbc.defaultlrl
odbc.defaultlrl = 4096
; Handling of binary data. 0 means passthru, 1 return as is, 2 convert to char.
; See the documentation on odbc_binmode and odbc_longreadlen for an explanation
; of odbc.defaultlrl and odbc.defaultbinmode
; https://php.net/odbc.defaultbinmode
odbc.defaultbinmode = 1
[MySQLi]
; Maximum number of persistent links. -1 means no limit.
; https://php.net/mysqli.max-persistent
mysqli.max_persistent = -1
; Allow accessing, from PHP's perspective, local files with LOAD DATA statements
; https://php.net/mysqli.allow_local_infile
;mysqli.allow_local_infile = On
; It allows the user to specify a folder where files that can be sent via LOAD DATA
; LOCAL can exist. It is ignored if mysqli.allow_local_infile is enabled.
;mysqli.local_infile_directory =
; Allow or prevent persistent links.
; https://php.net/mysqli.allow-persistent
mysqli.allow_persistent = On
; Maximum number of links. -1 means no limit.
; https://php.net/mysqli.max-links
mysqli.max_links = -1
; Default port number for mysqli_connect().
; https://php.net/mysqli.default-port
mysqli.default_port = 3306
; Default socket name for local MySQL connects. If empty, uses the built-in
; MySQL defaults.
; https://php.net/mysqli.default-socket
mysqli.default_socket =
; Default host for mysqli_connect().
; https://php.net/mysqli.default-host
mysqli.default_host =
; Default user for mysqli_connect().
; https://php.net/mysqli.default-user
mysqli.default_user =
; Default password for mysqli_connect().
; Note that this is generally a *bad* idea to store passwords in this file.
; *Any* user with PHP access can run 'echo get_cfg_var("mysqli.default_pw")
; and reveal this password! And of course, any users with read access to this
; file will be able to reveal the password as well.
; https://php.net/mysqli.default-pw
mysqli.default_pw =
; If this option is enabled, closing a persistent connection will rollback
; any pending transactions of this connection, before it is put back
; into the persistent connection pool.
;mysqli.rollback_on_cached_plink = Off
[mysqlnd]
; Enable / Disable collection of general statistics by mysqlnd which can be
; used to tune and monitor MySQL operations.
mysqlnd.collect_statistics = On
; Enable / Disable collection of memory usage statistics by mysqlnd which can be
; used to tune and monitor MySQL operations.
; Default Value: Off
; Development Value: On
; Production Value: Off
mysqlnd.collect_memory_statistics = Off
; Records communication from all extensions using mysqlnd to the specified log
; file.
; https://php.net/mysqlnd.debug
;mysqlnd.debug =
; Defines which queries will be logged.
;mysqlnd.log_mask = 0
; Default size of the mysqlnd memory pool, which is used by result sets.
;mysqlnd.mempool_default_size = 16000
; Size of a pre-allocated buffer used when sending commands to MySQL in bytes.
;mysqlnd.net_cmd_buffer_size = 2048
; Size of a pre-allocated buffer used for reading data sent by the server in
; bytes.
;mysqlnd.net_read_buffer_size = 32768
; Timeout for network requests in seconds.
;mysqlnd.net_read_timeout = 31536000
; SHA-256 Authentication Plugin related. File with the MySQL server public RSA
; key.
;mysqlnd.sha256_server_public_key =
[PostgreSQL]
; Allow or prevent persistent links.
; https://php.net/pgsql.allow-persistent
pgsql.allow_persistent = On
; Detect broken persistent links always with pg_pconnect().
; Auto reset feature requires a little overheads.
; https://php.net/pgsql.auto-reset-persistent
pgsql.auto_reset_persistent = Off
; Maximum number of persistent links. -1 means no limit.
; https://php.net/pgsql.max-persistent
pgsql.max_persistent = -1
; Maximum number of links (persistent+non persistent). -1 means no limit.
; https://php.net/pgsql.max-links
pgsql.max_links = -1
; Ignore PostgreSQL backends Notice message or not.
; Notice message logging require a little overheads.
; https://php.net/pgsql.ignore-notice
pgsql.ignore_notice = 0
; Log PostgreSQL backends Notice message or not.
; Unless pgsql.ignore_notice=0, module cannot log notice message.
; https://php.net/pgsql.log-notice
pgsql.log_notice = 0
[bcmath]
; Number of decimal digits for all bcmath functions.
; https://php.net/bcmath.scale
bcmath.scale = 0
[browscap]
; https://php.net/browscap
;browscap = extra/browscap.ini
[Session]
; Handler used to store/retrieve data.
; https://php.net/session.save-handler
session.save_handler = files
; Argument passed to save_handler. In the case of files, this is the path
; where data files are stored. Note: Windows users have to change this
; variable in order to use PHP's session functions.
;
; The path can be defined as:
;
; session.save_path = "N;/path"
;
; where N is an integer. Instead of storing all the session files in
; /path, what this will do is use subdirectories N-levels deep, and
; store the session data in those directories. This is useful if
; your OS has problems with many files in one directory, and is
; a more efficient layout for servers that handle many sessions.
;
; NOTE 1: PHP will not create this directory structure automatically.
; You can use the script in the ext/session dir for that purpose.
; NOTE 2: See the section on garbage collection below if you choose to
; use subdirectories for session storage
;
; The file storage module creates files using mode 600 by default.
; You can change that by using
;
; session.save_path = "N;MODE;/path"
;
; where MODE is the octal representation of the mode. Note that this
; does not overwrite the process's umask.
; https://php.net/session.save-path
session.save_path = "0;777;/var/lib/php/sessions"
; Whether to use strict session mode.
; Strict session mode does not accept an uninitialized session ID, and
; regenerates the session ID if the browser sends an uninitialized session ID.
; Strict mode protects applications from session fixation via a session adoption
; vulnerability. It is disabled by default for maximum compatibility, but
; enabling it is encouraged.
; https://wiki.php.net/rfc/strict_sessions
session.use_strict_mode = 0
; Whether to use cookies.
; https://php.net/session.use-cookies
session.use_cookies = 1
; https://php.net/session.cookie-secure
;session.cookie_secure =
; This option forces PHP to fetch and use a cookie for storing and maintaining
; the session id. We encourage this operation as it's very helpful in combating
; session hijacking when not specifying and managing your own session id. It is
; not the be-all and end-all of session hijacking defense, but it's a good start.
; https://php.net/session.use-only-cookies
session.use_only_cookies = 1
; Name of the session (used as cookie name).
; https://php.net/session.name
session.name = PHPSESSID
; Initialize session on request startup.
; https://php.net/session.auto-start
session.auto_start = 0
; Lifetime in seconds of cookie or, if 0, until browser is restarted.
; https://php.net/session.cookie-lifetime
session.cookie_lifetime = 0
; The path for which the cookie is valid.
; https://php.net/session.cookie-path
session.cookie_path = /
; The domain for which the cookie is valid.
; https://php.net/session.cookie-domain
session.cookie_domain =
; Whether or not to add the httpOnly flag to the cookie, which makes it
; inaccessible to browser scripting languages such as JavaScript.
; https://php.net/session.cookie-httponly
session.cookie_httponly =
; Add SameSite attribute to cookie to help mitigate Cross-Site Request Forgery (CSRF/XSRF)
; Current valid values are "Strict", "Lax" or "None". When using "None",
; make sure to include the quotes, as `none` is interpreted like `false` in ini files.
; https://tools.ietf.org/html/draft-west-first-party-cookies-07
session.cookie_samesite =
; Handler used to serialize data. php is the standard serializer of PHP.
; https://php.net/session.serialize-handler
session.serialize_handler = php
; Defines the probability that the 'garbage collection' process is started on every
; session initialization. The probability is calculated by using gc_probability/gc_divisor,
; e.g. 1/100 means there is a 1% chance that the GC process starts on each request.
; Default Value: 1
; Development Value: 1
; Production Value: 1
; https://php.net/session.gc-probability
; Debian Default Value: 0
; This is disabled in the Debian packages due to the strict permissions
; on /var/lib/php. Instead, GC is performed through /etc/cron.d/php,
; which uses the session.gc_maxlifetime setting. Please, check
; /usr/share/doc/php8.2-common/README.Debian.gz for further reference.
session.gc_probability = 0
; Defines the probability that the 'garbage collection' process is started on every
; session initialization. The probability is calculated by using gc_probability/gc_divisor,
; e.g. 1/100 means there is a 1% chance that the GC process starts on each request.
; For high volume production servers, using a value of 1000 is a more efficient approach.
; Default Value: 100
; Development Value: 1000
; Production Value: 1000
; https://php.net/session.gc-divisor
session.gc_divisor = 1000
; After this number of seconds, stored data will be seen as 'garbage' and
; cleaned up by the garbage collection process.
; https://php.net/session.gc-maxlifetime
session.gc_maxlifetime = 86400
; NOTE: If you are using the subdirectory option for storing session files
; (see session.save_path above), then garbage collection does *not*
; happen automatically. You will need to do your own garbage
; collection through a shell script, cron entry, or some other method.
; For example, the following script is the equivalent of setting
; session.gc_maxlifetime to 1440 (1440 seconds = 24 minutes):
; find /path/to/sessions -cmin +24 -type f | xargs rm
; Check HTTP Referer to invalidate externally stored URLs containing ids.
; HTTP_REFERER has to contain this substring for the session to be
; considered as valid.
; https://php.net/session.referer-check
session.referer_check =
; Set to {nocache,private,public,} to determine HTTP caching aspects
; or leave this empty to avoid sending anti-caching headers.
; https://php.net/session.cache-limiter
session.cache_limiter = nocache
; Document expires after n minutes.
; https://php.net/session.cache-expire
session.cache_expire = 180
; trans sid support is disabled by default.
; Use of trans sid may risk your users' security.
; Use this option with caution.
; - User may send URL contains active session ID
; to other person via. email/irc/etc.
; - URL that contains active session ID may be stored
; in publicly accessible computer.
; - User may access your site with the same session ID
; always using URL stored in browser's history or bookmarks.
; https://php.net/session.use-trans-sid
session.use_trans_sid = 0
; The URL rewriter will look for URLs in a defined set of HTML tags.
; <form> is special; if you include them here, the rewriter will
; add a hidden <input> field with the info which is otherwise appended
; to URLs. <form> tag's action attribute URL will not be modified
; unless it is specified.
; Note that all valid entries require a "=", even if no value follows.
; Default Value: "a=href,area=href,frame=src,form="
; Development Value: "a=href,area=href,frame=src,form="
; Production Value: "a=href,area=href,frame=src,form="
; https://php.net/url-rewriter.tags
session.trans_sid_tags = "a=href,area=href,frame=src,form="
; URL rewriter does not rewrite absolute URLs by default.
; To enable rewrites for absolute paths, target hosts must be specified
; at RUNTIME. i.e. use ini_set()
; <form> tags is special. PHP will check action attribute's URL regardless
; of session.trans_sid_tags setting.
; If no host is defined, HTTP_HOST will be used for allowed host.
; Example value: php.net,www.php.net,wiki.php.net
; Use "," for multiple hosts. No spaces are allowed.
; Default Value: ""
; Development Value: ""
; Production Value: ""
;session.trans_sid_hosts=""
; Enable upload progress tracking in $_SESSION
; Default Value: On
; Development Value: On
; Production Value: On
; https://php.net/session.upload-progress.enabled
;session.upload_progress.enabled = On
; Cleanup the progress information as soon as all POST data has been read
; (i.e. upload completed).
; Default Value: On
; Development Value: On
; Production Value: On
; https://php.net/session.upload-progress.cleanup
;session.upload_progress.cleanup = On
; A prefix used for the upload progress key in $_SESSION
; Default Value: "upload_progress_"
; Development Value: "upload_progress_"
; Production Value: "upload_progress_"
; https://php.net/session.upload-progress.prefix
;session.upload_progress.prefix = "upload_progress_"
; The index name (concatenated with the prefix) in $_SESSION
; containing the upload progress information
; Default Value: "PHP_SESSION_UPLOAD_PROGRESS"
; Development Value: "PHP_SESSION_UPLOAD_PROGRESS"
; Production Value: "PHP_SESSION_UPLOAD_PROGRESS"
; https://php.net/session.upload-progress.name
;session.upload_progress.name = "PHP_SESSION_UPLOAD_PROGRESS"
; How frequently the upload progress should be updated.
; Given either in percentages (per-file), or in bytes
; Default Value: "1%"
; Development Value: "1%"
; Production Value: "1%"
; https://php.net/session.upload-progress.freq
;session.upload_progress.freq = "1%"
; The minimum delay between updates, in seconds
; Default Value: 1
; Development Value: 1
; Production Value: 1
; https://php.net/session.upload-progress.min-freq
;session.upload_progress.min_freq = "1"
; Only write session data when session data is changed. Enabled by default.
; https://php.net/session.lazy-write
;session.lazy_write = On
[Assertion]
; Switch whether to compile assertions at all (to have no overhead at run-time)
; -1: Do not compile at all
; 0: Jump over assertion at run-time
; 1: Execute assertions
; Changing from or to a negative value is only possible in php.ini!
; (For turning assertions on and off at run-time, toggle zend.assertions between the values 1 and 0)
; Default Value: 1
; Development Value: 1
; Production Value: -1
; https://php.net/zend.assertions
zend.assertions = -1
[COM]
; path to a file containing GUIDs, IIDs or filenames of files with TypeLibs
; https://php.net/com.typelib-file
;com.typelib_file =
; allow Distributed-COM calls
; https://php.net/com.allow-dcom
;com.allow_dcom = true
; autoregister constants of a component's typelib on com_load()
; https://php.net/com.autoregister-typelib
;com.autoregister_typelib = true
; register constants casesensitive
; https://php.net/com.autoregister-casesensitive
;com.autoregister_casesensitive = false
; show warnings on duplicate constant registrations
; https://php.net/com.autoregister-verbose
;com.autoregister_verbose = true
; The default character set code-page to use when passing strings to and from COM objects.
; Default: system ANSI code page
;com.code_page=
; The version of the .NET framework to use. The value of the setting are the first three parts
; of the framework's version number, separated by dots, and prefixed with "v", e.g. "v4.0.30319".
;com.dotnet_version=
[mbstring]
; language for internal character representation.
; This affects mb_send_mail() and mbstring.detect_order.
; https://php.net/mbstring.language
;mbstring.language = Japanese
; Use of this INI entry is deprecated, use global internal_encoding instead.
; internal/script encoding.
; Some encoding cannot work as internal encoding. (e.g. SJIS, BIG5, ISO-2022-*)
; If empty, default_charset or internal_encoding or iconv.internal_encoding is used.
; The precedence is: default_charset < internal_encoding < iconv.internal_encoding
;mbstring.internal_encoding =
; Use of this INI entry is deprecated, use global input_encoding instead.
; http input encoding.
; mbstring.encoding_translation = On is needed to use this setting.
; If empty, default_charset or input_encoding or mbstring.input is used.
; The precedence is: default_charset < input_encoding < mbstring.http_input
; https://php.net/mbstring.http-input
;mbstring.http_input =
; Use of this INI entry is deprecated, use global output_encoding instead.
; http output encoding.
; mb_output_handler must be registered as output buffer to function.
; If empty, default_charset or output_encoding or mbstring.http_output is used.
; The precedence is: default_charset < output_encoding < mbstring.http_output
; To use an output encoding conversion, mbstring's output handler must be set
; otherwise output encoding conversion cannot be performed.
; https://php.net/mbstring.http-output
;mbstring.http_output =
; enable automatic encoding translation according to
; mbstring.internal_encoding setting. Input chars are
; converted to internal encoding by setting this to On.
; Note: Do _not_ use automatic encoding translation for
; portable libs/applications.
; https://php.net/mbstring.encoding-translation
;mbstring.encoding_translation = Off
; automatic encoding detection order.
; "auto" detect order is changed according to mbstring.language
; https://php.net/mbstring.detect-order
;mbstring.detect_order = auto
; substitute_character used when character cannot be converted
; one from another
; https://php.net/mbstring.substitute-character
;mbstring.substitute_character = none
; Enable strict encoding detection.
;mbstring.strict_detection = Off
; This directive specifies the regex pattern of content types for which mb_output_handler()
; is activated.
; Default: mbstring.http_output_conv_mimetypes=^(text/|application/xhtml\+xml)
;mbstring.http_output_conv_mimetypes=
; This directive specifies maximum stack depth for mbstring regular expressions. It is similar
; to the pcre.recursion_limit for PCRE.
;mbstring.regex_stack_limit=100000
; This directive specifies maximum retry count for mbstring regular expressions. It is similar
; to the pcre.backtrack_limit for PCRE.
;mbstring.regex_retry_limit=1000000
[gd]
; Tell the jpeg decode to ignore warnings and try to create
; a gd image. The warning will then be displayed as notices
; disabled by default
; https://php.net/gd.jpeg-ignore-warning
;gd.jpeg_ignore_warning = 1
[exif]
; Exif UNICODE user comments are handled as UCS-2BE/UCS-2LE and JIS as JIS.
; With mbstring support this will automatically be converted into the encoding
; given by corresponding encode setting. When empty mbstring.internal_encoding
; is used. For the decode settings you can distinguish between motorola and
; intel byte order. A decode setting must not be empty.
; https://php.net/exif.encode-unicode
;exif.encode_unicode = ISO-8859-15
; https://php.net/exif.decode-unicode-motorola
;exif.decode_unicode_motorola = UCS-2BE
; https://php.net/exif.decode-unicode-intel
;exif.decode_unicode_intel = UCS-2LE
; https://php.net/exif.encode-jis
;exif.encode_jis =
; https://php.net/exif.decode-jis-motorola
;exif.decode_jis_motorola = JIS
; https://php.net/exif.decode-jis-intel
;exif.decode_jis_intel = JIS
[Tidy]
; The path to a default tidy configuration file to use when using tidy
; https://php.net/tidy.default-config
;tidy.default_config = /usr/local/lib/php/default.tcfg
; Should tidy clean and repair output automatically?
; WARNING: Do not use this option if you are generating non-html content
; such as dynamic images
; https://php.net/tidy.clean-output
tidy.clean_output = Off
[soap]
; Enables or disables WSDL caching feature.
; https://php.net/soap.wsdl-cache-enabled
soap.wsdl_cache_enabled=1
; Sets the directory name where SOAP extension will put cache files.
; https://php.net/soap.wsdl-cache-dir
soap.wsdl_cache_dir="/tmp"
; (time to live) Sets the number of second while cached file will be used
; instead of original one.
; https://php.net/soap.wsdl-cache-ttl
soap.wsdl_cache_ttl=86400
; Sets the size of the cache limit. (Max. number of WSDL files to cache)
soap.wsdl_cache_limit = 5
[sysvshm]
; A default size of the shared memory segment
;sysvshm.init_mem = 10000
[ldap]
; Sets the maximum number of open links or -1 for unlimited.
ldap.max_links = -1
[dba]
;dba.default_handler=
[opcache]
; Determines if Zend OPCache is enabled
opcache.enable=1
; Determines if Zend OPCache is enabled for the CLI version of PHP
opcache.enable_cli=1
; The OPcache shared memory storage size.
opcache.memory_consumption=768
; The amount of memory for interned strings in Mbytes.
opcache.interned_strings_buffer=8
; The maximum number of keys (scripts) in the OPcache hash table.
; Only numbers between 200 and 1000000 are allowed.
opcache.max_accelerated_files=1000000
; The maximum percentage of "wasted" memory until a restart is scheduled.
;opcache.max_wasted_percentage=5
; When this directive is enabled, the OPcache appends the current working
; directory to the script key, thus eliminating possible collisions between
; files with the same name (basename). Disabling the directive improves
; performance, but may break existing applications.
;opcache.use_cwd=1
; When disabled, you must reset the OPcache manually or restart the
; webserver for changes to the filesystem to take effect.
opcache.validate_timestamps=1
; How often (in seconds) to check file timestamps for changes to the shared
; memory storage allocation. ("1" means validate once per second, but only
; once per request. "0" means always validate)
opcache.revalidate_freq=2
; Enables or disables file search in include_path optimization
opcache.revalidate_path=1
; If disabled, all PHPDoc comments are dropped from the code to reduce the
; size of the optimized code.
opcache.save_comments=1
; If enabled, compilation warnings (including notices and deprecations) will
; be recorded and replayed each time a file is included. Otherwise, compilation
; warnings will only be emitted when the file is first cached.
;opcache.record_warnings=0
; Allow file existence override (file_exists, etc.) performance feature.
;opcache.enable_file_override=0
; A bitmask, where each bit enables or disables the appropriate OPcache
; passes
;opcache.optimization_level=0x7FFFBFFF
;opcache.dups_fix=0
; The location of the OPcache blacklist file (wildcards allowed).
; Each OPcache blacklist file is a text file that holds the names of files
; that should not be accelerated. The file format is to add each filename
; to a new line. The filename may be a full path or just a file prefix
; (i.e., /var/www/x blacklists all the files and directories in /var/www
; that start with 'x'). Line starting with a ; are ignored (comments).
;opcache.blacklist_filename=
; Allows exclusion of large files from being cached. By default all files
; are cached.
;opcache.max_file_size=0
; How long to wait (in seconds) for a scheduled restart to begin if the cache
; is not being accessed.
;opcache.force_restart_timeout=180
; OPcache error_log file name. Empty string assumes "stderr".
;opcache.error_log=
; All OPcache errors go to the Web server log.
; By default, only fatal errors (level 0) or errors (level 1) are logged.
; You can also enable warnings (level 2), info messages (level 3) or
; debug messages (level 4).
;opcache.log_verbosity_level=1
; Preferred Shared Memory back-end. Leave empty and let the system decide.
;opcache.preferred_memory_model=
; Protect the shared memory from unexpected writing during script execution.
; Useful for internal debugging only.
;opcache.protect_memory=0
; Allows calling OPcache API functions only from PHP scripts which path is
; started from specified string. The default "" means no restriction
;opcache.restrict_api=
; Mapping base of shared memory segments (for Windows only). All the PHP
; processes have to map shared memory into the same address space. This
; directive allows to manually fix the "Unable to reattach to base address"
; errors.
;opcache.mmap_base=
; Facilitates multiple OPcache instances per user (for Windows only). All PHP
; processes with the same cache ID and user share an OPcache instance.
;opcache.cache_id=
; Enables and sets the second level cache directory.
; It should improve performance when SHM memory is full, at server restart or
; SHM reset. The default "" disables file based caching.
;opcache.file_cache=
; Enables or disables read-only mode for the second level cache directory.
; It should improve performance for read-only containers,
; when the cache is pre-warmed and packaged alongside the application.
; Best used with `opcache.validate_timestamps=0`, `opcache.enable_file_override=1`
; and `opcache.file_cache_consistency_checks=0`.
; Note: A cache generated with a different build of PHP, a different file path,
; or different settings (including which extensions are loaded), may be ignored.
;opcache.file_cache_read_only=0
; Enables or disables opcode caching in shared memory.
;opcache.file_cache_only=0
; Enables or disables checksum validation when script loaded from file cache.
;opcache.file_cache_consistency_checks=1
; Implies opcache.file_cache_only=1 for a certain process that failed to
; reattach to the shared memory (for Windows only). Explicitly enabled file
; cache is required.
;opcache.file_cache_fallback=1
; Enables or disables copying of PHP code (text segment) into HUGE PAGES.
; Under certain circumstances (if only a single global PHP process is
; started from which all others fork), this can increase performance
; by a tiny amount because TLB misses are reduced. On the other hand, this
; delays PHP startup, increases memory usage and degrades performance
; under memory pressure - use with care.
; Requires appropriate OS configuration.
;opcache.huge_code_pages=0
; Validate cached file permissions.
;opcache.validate_permission=0
; Prevent name collisions in chroot'ed environment.
;opcache.validate_root=0
; If specified, it produces opcode dumps for debugging different stages of
; optimizations.
;opcache.opt_debug_level=0
; Specifies a PHP script that is going to be compiled and executed at server
; start-up.
; https://php.net/opcache.preload
;opcache.preload=
; Preloading code as root is not allowed for security reasons. This directive
; facilitates to let the preloading to be run as another user.
; https://php.net/opcache.preload_user
;opcache.preload_user=
; Prevents caching files that are less than this number of seconds old. It
; protects from caching of incompletely updated files. In case all file updates
; on your site are atomic, you may increase performance by setting it to "0".
;opcache.file_update_protection=2
; Absolute path used to store shared lockfiles (for *nix only).
;opcache.lockfile_path=/tmp
[curl]
; A default value for the CURLOPT_CAINFO option. This is required to be an
; absolute path.
;curl.cainfo =
[openssl]
; The location of a Certificate Authority (CA) file on the local filesystem
; to use when verifying the identity of SSL/TLS peers. Most users should
; not specify a value for this directive as PHP will attempt to use the
; OS-managed cert stores in its absence. If specified, this value may still
; be overridden on a per-stream basis via the "cafile" SSL stream context
; option.
;openssl.cafile=
; If openssl.cafile is not specified or if the CA file is not found, the
; directory pointed to by openssl.capath is searched for a suitable
; certificate. This value must be a correctly hashed certificate directory.
; Most users should not specify a value for this directive as PHP will
; attempt to use the OS-managed cert stores in its absence. If specified,
; this value may still be overridden on a per-stream basis via the "capath"
; SSL stream context option.
;openssl.capath=
; The libctx is an OpenSSL library context. OpenSSL defines a default library
; context, but PHP OpenSSL also defines its own library context to avoid
; interference with other libraries using OpenSSL and to provide an independent
; context for each thread in ZTS. Possible values:
; "custom" - use a custom library context (default)
; "default" - use the default OpenSSL library context
;openssl.libctx=custom
[ffi]
; FFI API restriction. Possible values:
; "preload" - enabled in CLI scripts and preloaded files (default)
; "false" - always disabled
; "true" - always enabled
;ffi.enable=preload
; List of headers files to preload, wildcard patterns allowed.
;ffi.preload=
imagick.skip_version_check=true
;zend_extension=ioncube_loader_lin_8.5.so
extension=memcached.so
extension=imagick.so
extension=redis.so
opcache.interned_strings_buffer=64
systemctl reload php8.5-fpm
systemctl restart php8.5-fpm
Redis Server
/etc/redis/redis.conf
redis.conf
# Redis configuration file example.
#
# Note that in order to read the configuration file, Redis must be
# started with the file path as first argument:
#
# ./redis-server /path/to/redis.conf
# Note on units: when memory size is needed, it is possible to specify
# it in the usual form of 1k 5GB 4M and so forth:
#
# 1k => 1000 bytes
# 1kb => 1024 bytes
# 1m => 1000000 bytes
# 1mb => 1024*1024 bytes
# 1g => 1000000000 bytes
# 1gb => 1024*1024*1024 bytes
#
# units are case insensitive so 1GB 1Gb 1gB are all the same.
################################## INCLUDES ###################################
# Include one or more other config files here. This is useful if you
# have a standard template that goes to all Redis servers but also need
# to customize a few per-server settings. Include files can include
# other files, so use this wisely.
#
# Note that option "include" won't be rewritten by command "CONFIG REWRITE"
# from admin or Redis Sentinel. Since Redis always uses the last processed
# line as value of a configuration directive, you'd better put includes
# at the beginning of this file to avoid overwriting config change at runtime.
#
# If instead you are interested in using includes to override configuration
# options, it is better to use include as the last line.
#
# Included paths may contain wildcards. All files matching the wildcards will
# be included in alphabetical order.
# Note that if an include path contains a wildcards but no files match it when
# the server is started, the include statement will be ignored and no error will
# be emitted. It is safe, therefore, to include wildcard files from empty
# directories.
#
# include /path/to/local.conf
# include /path/to/other.conf
# include /path/to/fragments/*.conf
#
################################## MODULES #####################################
# Load modules at startup. If the server is not able to load modules
# it will abort. It is possible to use multiple loadmodule directives.
#
# loadmodule /path/to/my_module.so
# loadmodule /path/to/other_module.so
# loadmodule /path/to/args_module.so [arg [arg ...]]
################################## NETWORK #####################################
# By default, if no "bind" configuration directive is specified, Redis listens
# for connections from all available network interfaces on the host machine.
# It is possible to listen to just one or multiple selected interfaces using
# the "bind" configuration directive, followed by one or more IP addresses.
# Each address can be prefixed by "-", which means that redis will not fail to
# start if the address is not available. Being not available only refers to
# addresses that does not correspond to any network interface. Addresses that
# are already in use will always fail, and unsupported protocols will always BE
# silently skipped.
#
# Examples:
#
# bind 192.168.1.100 10.0.0.1 # listens on two specific IPv4 addresses
# bind 127.0.0.1 ::1 # listens on loopback IPv4 and IPv6
# bind * -::* # like the default, all available interfaces
#
# ~~~ WARNING ~~~ If the computer running Redis is directly exposed to the
# internet, binding to all the interfaces is dangerous and will expose the
# instance to everybody on the internet. So by default we uncomment the
# following bind directive, that will force Redis to listen only on the
# IPv4 and IPv6 (if available) loopback interface addresses (this means Redis
# will only be able to accept client connections from the same host that it is
# running on).
#
# IF YOU ARE SURE YOU WANT YOUR INSTANCE TO LISTEN TO ALL THE INTERFACES
# COMMENT OUT THE FOLLOWING LINE.
#
# You will also need to set a password unless you explicitly disable protected
# mode.
# ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
bind 127.0.0.1 -::1
# By default, outgoing connections (from replica to master, from Sentinel to
# instances, cluster bus, etc.) are not bound to a specific local address. In
# most cases, this means the operating system will handle that based on routing
# and the interface through which the connection goes out.
#
# Using bind-source-addr it is possible to configure a specific address to bind
# to, which may also affect how the connection gets routed.
#
# Example:
#
# bind-source-addr 10.0.0.1
# Protected mode is a layer of security protection, in order to avoid that
# Redis instances left open on the internet are accessed and exploited.
#
# When protected mode is on and the default user has no password, the server
# only accepts local connections from the IPv4 address (127.0.0.1), IPv6 address
# (::1) or Unix domain sockets.
#
# By default protected mode is enabled. You should disable it only if
# you are sure you want clients from other hosts to connect to Redis
# even if no authentication is configured.
protected-mode yes
# Redis uses default hardened security configuration directives to reduce the
# attack surface on innocent users. Therefore, several sensitive configuration
# directives are immutable, and some potentially-dangerous commands are blocked.
#
# Configuration directives that control files that Redis writes to (e.g., 'dir'
# and 'dbfilename') and that aren't usually modified during runtime
# are protected by making them immutable.
#
# Commands that can increase the attack surface of Redis and that aren't usually
# called by users are blocked by default.
#
# These can be exposed to either all connections or just local ones by setting
# each of the configs listed below to either of these values:
#
# no - Block for any connection (remain immutable)
# yes - Allow for any connection (no protection)
# local - Allow only for local connections. Ones originating from the
# IPv4 address (127.0.0.1), IPv6 address (::1) or Unix domain sockets.
#
# enable-protected-configs no
# enable-debug-command no
# enable-module-command no
# Accept connections on the specified port, default is 6379 (IANA #815344).
# If port 0 is specified Redis will not listen on a TCP socket.
port 6379
# TCP listen() backlog.
#
# In high requests-per-second environments you need a high backlog in order
# to avoid slow clients connection issues. Note that the Linux kernel
# will silently truncate it to the value of /proc/sys/net/core/somaxconn so
# make sure to raise both the value of somaxconn and tcp_max_syn_backlog
# in order to get the desired effect.
tcp-backlog 511
# Unix socket.
#
# Specify the path for the Unix socket that will be used to listen for
# incoming connections. There is no default, so Redis will not listen
# on a unix socket when not specified.
#
# unixsocket /run/redis/redis-server.sock
# unixsocketperm 700
# Close the connection after a client is idle for N seconds (0 to disable)
timeout 0
# TCP keepalive.
#
# If non-zero, use SO_KEEPALIVE to send TCP ACKs to clients in absence
# of communication. This is useful for two reasons:
#
# 1) Detect dead peers.
# 2) Force network equipment in the middle to consider the connection to be
# alive.
#
# On Linux, the specified value (in seconds) is the period used to send ACKs.
# Note that to close the connection the double of the time is needed.
# On other kernels the period depends on the kernel configuration.
#
# A reasonable value for this option is 300 seconds, which is the new
# Redis default starting with Redis 3.2.1.
tcp-keepalive 300
# Apply OS-specific mechanism to mark the listening socket with the specified
# ID, to support advanced routing and filtering capabilities.
#
# On Linux, the ID represents a connection mark.
# On FreeBSD, the ID represents a socket cookie ID.
# On OpenBSD, the ID represents a route table ID.
#
# The default value is 0, which implies no marking is required.
# socket-mark-id 0
################################# TLS/SSL #####################################
# By default, TLS/SSL is disabled. To enable it, the "tls-port" configuration
# directive can be used to define TLS-listening ports. To enable TLS on the
# default port, use:
#
# port 0
# tls-port 6379
# Configure a X.509 certificate and private key to use for authenticating the
# server to connected clients, masters or cluster peers. These files should be
# PEM formatted.
#
# tls-cert-file redis.crt
# tls-key-file redis.key
#
# If the key file is encrypted using a passphrase, it can be included here
# as well.
#
# tls-key-file-pass secret
# Normally Redis uses the same certificate for both server functions (accepting
# connections) and client functions (replicating from a master, establishing
# cluster bus connections, etc.).
#
# Sometimes certificates are issued with attributes that designate them as
# client-only or server-only certificates. In that case it may be desired to use
# different certificates for incoming (server) and outgoing (client)
# connections. To do that, use the following directives:
#
# tls-client-cert-file client.crt
# tls-client-key-file client.key
#
# If the key file is encrypted using a passphrase, it can be included here
# as well.
#
# tls-client-key-file-pass secret
# Configure a DH parameters file to enable Diffie-Hellman (DH) key exchange,
# required by older versions of OpenSSL (<3.0). Newer versions do not require
# this configuration and recommend against it.
#
# tls-dh-params-file redis.dh
# Configure a CA certificate(s) bundle or directory to authenticate TLS/SSL
# clients and peers. Redis requires an explicit configuration of at least one
# of these, and will not implicitly use the system wide configuration.
#
# tls-ca-cert-file ca.crt
# tls-ca-cert-dir /etc/ssl/certs
# By default, clients (including replica servers) on a TLS port are required
# to authenticate using valid client side certificates.
#
# If "no" is specified, client certificates are not required and not accepted.
# If "optional" is specified, client certificates are accepted and must be
# valid if provided, but are not required.
#
# tls-auth-clients no
# tls-auth-clients optional
# By default, a Redis replica does not attempt to establish a TLS connection
# with its master.
#
# Use the following directive to enable TLS on replication links.
#
# tls-replication yes
# By default, the Redis Cluster bus uses a plain TCP connection. To enable
# TLS for the bus protocol, use the following directive:
#
# tls-cluster yes
# By default, only TLSv1.2 and TLSv1.3 are enabled and it is highly recommended
# that older formally deprecated versions are kept disabled to reduce the attack surface.
# You can explicitly specify TLS versions to support.
# Allowed values are case insensitive and include "TLSv1", "TLSv1.1", "TLSv1.2",
# "TLSv1.3" (OpenSSL >= 1.1.1) or any combination.
# To enable only TLSv1.2 and TLSv1.3, use:
#
# tls-protocols "TLSv1.2 TLSv1.3"
# Configure allowed ciphers. See the ciphers(1ssl) manpage for more information
# about the syntax of this string.
#
# Note: this configuration applies only to <= TLSv1.2.
#
# tls-ciphers DEFAULT:!MEDIUM
# Configure allowed TLSv1.3 ciphersuites. See the ciphers(1ssl) manpage for more
# information about the syntax of this string, and specifically for TLSv1.3
# ciphersuites.
#
# tls-ciphersuites TLS_CHACHA20_POLY1305_SHA256
# When choosing a cipher, use the server's preference instead of the client
# preference. By default, the server follows the client's preference.
#
# tls-prefer-server-ciphers yes
# By default, TLS session caching is enabled to allow faster and less expensive
# reconnections by clients that support it. Use the following directive to disable
# caching.
#
# tls-session-caching no
# Change the default number of TLS sessions cached. A zero value sets the cache
# to unlimited size. The default size is 20480.
#
# tls-session-cache-size 5000
# Change the default timeout of cached TLS sessions. The default timeout is 300
# seconds.
#
# tls-session-cache-timeout 60
################################# GENERAL #####################################
# By default Redis does not run as a daemon. Use 'yes' if you need it.
# Note that Redis will write a pid file in /var/run/redis.pid when daemonized.
# When Redis is supervised by upstart or systemd, this parameter has no impact.
daemonize yes
# If you run Redis from upstart or systemd, Redis can interact with your
# supervision tree. Options:
# supervised no - no supervision interaction
# supervised upstart - signal upstart by putting Redis into SIGSTOP mode
# requires "expect stop" in your upstart job config
# supervised systemd - signal systemd by writing READY=1 to $NOTIFY_SOCKET
# on startup, and updating Redis status on a regular
# basis.
# supervised auto - detect upstart or systemd method based on
# UPSTART_JOB or NOTIFY_SOCKET environment variables
# Note: these supervision methods only signal "process is ready."
# They do not enable continuous pings back to your supervisor.
#
# The default is "no". To run under upstart/systemd, you can simply uncomment
# the line below:
#
# supervised auto
# If a pid file is specified, Redis writes it where specified at startup
# and removes it at exit.
#
# When the server runs non daemonized, no pid file is created if none is
# specified in the configuration. When the server is daemonized, the pid file
# is used even if not specified, defaulting to "/var/run/redis.pid".
#
# Creating a pid file is best effort: if Redis is not able to create it
# nothing bad happens, the server will start and run normally.
#
# Note that on modern Linux systems "/run/redis.pid" is more conforming
# and should be used instead.
pidfile /run/redis/redis-server.pid
# Specify the server verbosity level.
# This can be one of:
# debug (a lot of information, useful for development/testing)
# verbose (many rarely useful info, but not a mess like the debug level)
# notice (moderately verbose, what you want in production probably)
# warning (only very important / critical messages are logged)
# nothing (nothing is logged)
loglevel notice
# Specify the log file name. Also the empty string can be used to force
# Redis to log on the standard output. Note that if you use standard
# output for logging but daemonize, logs will be sent to /dev/null
logfile /var/log/redis/redis-server.log
# To enable logging to the system logger, just set 'syslog-enabled' to yes,
# and optionally update the other syslog parameters to suit your needs.
# syslog-enabled no
# Specify the syslog identity.
# syslog-ident redis
# Specify the syslog facility. Must be USER or between LOCAL0-LOCAL7.
# syslog-facility local0
# To disable the built in crash log, which will possibly produce cleaner core
# dumps when they are needed, uncomment the following:
#
# crash-log-enabled no
# To disable the fast memory check that's run as part of the crash log, which
# will possibly let redis terminate sooner, uncomment the following:
#
# crash-memcheck-enabled no
# Set the number of databases. The default database is DB 0, you can select
# a different one on a per-connection basis using SELECT <dbid> where
# dbid is a number between 0 and 'databases'-1
databases 16
# By default Redis shows an ASCII art logo only when started to log to the
# standard output and if the standard output is a TTY and syslog logging is
# disabled. Basically this means that normally a logo is displayed only in
# interactive sessions.
#
# However it is possible to force the pre-4.0 behavior and always show a
# ASCII art logo in startup logs by setting the following option to yes.
always-show-logo no
# To avoid logging personal identifiable information (PII) into server log file,
# uncomment the following:
#
# hide-user-data-from-log yes
# By default, Redis modifies the process title (as seen in 'top' and 'ps') to
# provide some runtime information. It is possible to disable this and leave
# the process name as executed by setting the following to no.
set-proc-title yes
# When changing the process title, Redis uses the following template to construct
# the modified title.
#
# Template variables are specified in curly brackets. The following variables are
# supported:
#
# {title} Name of process as executed if parent, or type of child process.
# {listen-addr} Bind address or '*' followed by TCP or TLS port listening on, or
# Unix socket if only that's available.
# {server-mode} Special mode, i.e. "[sentinel]" or "[cluster]".
# {port} TCP port listening on, or 0.
# {tls-port} TLS port listening on, or 0.
# {unixsocket} Unix domain socket listening on, or "".
# {config-file} Name of configuration file used.
#
proc-title-template "{title} {listen-addr} {server-mode}"
# Set the local environment which is used for string comparison operations, and
# also affect the performance of Lua scripts. Empty String indicates the locale
# is derived from the environment variables.
locale-collate ""
################################ SNAPSHOTTING ################################
# Save the DB to disk.
#
# save <seconds> <changes> [<seconds> <changes> ...]
#
# Redis will save the DB if the given number of seconds elapsed and it
# surpassed the given number of write operations against the DB.
#
# Snapshotting can be completely disabled with a single empty string argument
# as in following example:
#
# save ""
#
# Unless specified otherwise, by default Redis will save the DB:
# * After 3600 seconds (an hour) if at least 1 change was performed
# * After 300 seconds (5 minutes) if at least 100 changes were performed
# * After 60 seconds if at least 10000 changes were performed
#
# You can set these explicitly by uncommenting the following line.
#
# save 3600 1 300 100 60 10000
# By default Redis will stop accepting writes if RDB snapshots are enabled
# (at least one save point) and the latest background save failed.
# This will make the user aware (in a hard way) that data is not persisting
# on disk properly, otherwise chances are that no one will notice and some
# disaster will happen.
#
# If the background saving process will start working again Redis will
# automatically allow writes again.
#
# However if you have setup your proper monitoring of the Redis server
# and persistence, you may want to disable this feature so that Redis will
# continue to work as usual even if there are problems with disk,
# permissions, and so forth.
stop-writes-on-bgsave-error yes
# Compress string objects using LZF when dump .rdb databases?
# By default compression is enabled as it's almost always a win.
# If you want to save some CPU in the saving child set it to 'no' but
# the dataset will likely be bigger if you have compressible values or keys.
rdbcompression yes
# Since version 5 of RDB a CRC64 checksum is placed at the end of the file.
# This makes the format more resistant to corruption but there is a performance
# hit to pay (around 10%) when saving and loading RDB files, so you can disable it
# for maximum performances.
#
# RDB files created with checksum disabled have a checksum of zero that will
# tell the loading code to skip the check.
rdbchecksum yes
# Enables or disables full sanitization checks for ziplist and listpack etc when
# loading an RDB or RESTORE payload. This reduces the chances of a assertion or
# crash later on while processing commands.
# Options:
# no - Never perform full sanitization
# yes - Always perform full sanitization
# clients - Perform full sanitization only for user connections.
# Excludes: RDB files, RESTORE commands received from the master
# connection, and client connections which have the
# skip-sanitize-payload ACL flag.
# The default should be 'clients' but since it currently affects cluster
# resharding via MIGRATE, it is temporarily set to 'no' by default.
#
# sanitize-dump-payload no
# The filename where to dump the DB
dbfilename dump.rdb
# Remove RDB files used by replication in instances without persistence
# enabled. By default this option is disabled, however there are environments
# where for regulations or other security concerns, RDB files persisted on
# disk by masters in order to feed replicas, or stored on disk by replicas
# in order to load them for the initial synchronization, should be deleted
# ASAP. Note that this option ONLY WORKS in instances that have both AOF
# and RDB persistence disabled, otherwise is completely ignored.
#
# An alternative (and sometimes better) way to obtain the same effect is
# to use diskless replication on both master and replicas instances. However
# in the case of replicas, diskless is not always an option.
rdb-del-sync-files no
# The working directory.
#
# The DB will be written inside this directory, with the filename specified
# above using the 'dbfilename' configuration directive.
#
# The Append Only File will also be created inside this directory.
#
# Note that you must specify a directory here, not a file name.
dir /var/lib/redis
################################# REPLICATION #################################
# Master-Replica replication. Use replicaof to make a Redis instance a copy of
# another Redis server. A few things to understand ASAP about Redis replication.
#
# +------------------+ +---------------+
# | Master | ---> | Replica |
# | (receive writes) | | (exact copy) |
# +------------------+ +---------------+
#
# 1) Redis replication is asynchronous, but you can configure a master to
# stop accepting writes if it appears to be not connected with at least
# a given number of replicas.
# 2) Redis replicas are able to perform a partial resynchronization with the
# master if the replication link is lost for a relatively small amount of
# time. You may want to configure the replication backlog size (see the next
# sections of this file) with a sensible value depending on your needs.
# 3) Replication is automatic and does not need user intervention. After a
# network partition replicas automatically try to reconnect to masters
# and resynchronize with them.
#
# replicaof <masterip> <masterport>
# If the master is password protected (using the "requirepass" configuration
# directive below) it is possible to tell the replica to authenticate before
# starting the replication synchronization process, otherwise the master will
# refuse the replica request.
#
# masterauth <master-password>
#
# However this is not enough if you are using Redis ACLs (for Redis version
# 6 or greater), and the default user is not capable of running the PSYNC
# command and/or other commands needed for replication. In this case it's
# better to configure a special user to use with replication, and specify the
# masteruser configuration as such:
#
# masteruser <username>
#
# When masteruser is specified, the replica will authenticate against its
# master using the new AUTH form: AUTH <username> <password>.
# When a replica loses its connection with the master, or when the replication
# is still in progress, the replica can act in two different ways:
#
# 1) if replica-serve-stale-data is set to 'yes' (the default) the replica will
# still reply to client requests, possibly with out of date data, or the
# data set may just be empty if this is the first synchronization.
#
# 2) If replica-serve-stale-data is set to 'no' the replica will reply with error
# "MASTERDOWN Link with MASTER is down and replica-serve-stale-data is set to 'no'"
# to all data access commands, excluding commands such as:
# INFO, REPLICAOF, AUTH, SHUTDOWN, REPLCONF, ROLE, CONFIG, SUBSCRIBE,
# UNSUBSCRIBE, PSUBSCRIBE, PUNSUBSCRIBE, PUBLISH, PUBSUB, COMMAND, POST,
# HOST and LATENCY.
#
replica-serve-stale-data yes
# You can configure a replica instance to accept writes or not. Writing against
# a replica instance may be useful to store some ephemeral data (because data
# written on a replica will be easily deleted after resync with the master) but
# may also cause problems if clients are writing to it because of a
# misconfiguration.
#
# Since Redis 2.6 by default replicas are read-only.
#
# Note: read only replicas are not designed to be exposed to untrusted clients
# on the internet. It's just a protection layer against misuse of the instance.
# Still a read only replica exports by default all the administrative commands
# such as CONFIG, DEBUG, and so forth. To a limited extent you can improve
# security of read only replicas using 'rename-command' to shadow all the
# administrative / dangerous commands.
replica-read-only yes
# Replication SYNC strategy: disk or socket.
#
# New replicas and reconnecting replicas that are not able to continue the
# replication process just receiving differences, need to do what is called a
# "full synchronization". An RDB file is transmitted from the master to the
# replicas.
#
# The transmission can happen in two different ways:
#
# 1) Disk-backed: The Redis master creates a new process that writes the RDB
# file on disk. Later the file is transferred by the parent
# process to the replicas incrementally.
# 2) Diskless: The Redis master creates a new process that directly writes the
# RDB file to replica sockets, without touching the disk at all.
#
# With disk-backed replication, while the RDB file is generated, more replicas
# can be queued and served with the RDB file as soon as the current child
# producing the RDB file finishes its work. With diskless replication instead
# once the transfer starts, new replicas arriving will be queued and a new
# transfer will start when the current one terminates.
#
# When diskless replication is used, the master waits a configurable amount of
# time (in seconds) before starting the transfer in the hope that multiple
# replicas will arrive and the transfer can be parallelized.
#
# With slow disks and fast (large bandwidth) networks, diskless replication
# works better.
repl-diskless-sync yes
# When diskless replication is enabled, it is possible to configure the delay
# the server waits in order to spawn the child that transfers the RDB via socket
# to the replicas.
#
# This is important since once the transfer starts, it is not possible to serve
# new replicas arriving, that will be queued for the next RDB transfer, so the
# server waits a delay in order to let more replicas arrive.
#
# The delay is specified in seconds, and by default is 5 seconds. To disable
# it entirely just set it to 0 seconds and the transfer will start ASAP.
repl-diskless-sync-delay 5
# When diskless replication is enabled with a delay, it is possible to let
# the replication start before the maximum delay is reached if the maximum
# number of replicas expected have connected. Default of 0 means that the
# maximum is not defined and Redis will wait the full delay.
repl-diskless-sync-max-replicas 0
# -----------------------------------------------------------------------------
# WARNING: Since in this setup the replica does not immediately store an RDB on
# disk, it may cause data loss during failovers. RDB diskless load + Redis
# modules not handling I/O reads may cause Redis to abort in case of I/O errors
# during the initial synchronization stage with the master.
# -----------------------------------------------------------------------------
#
# Replica can load the RDB it reads from the replication link directly from the
# socket, or store the RDB to a file and read that file after it was completely
# received from the master.
#
# In many cases the disk is slower than the network, and storing and loading
# the RDB file may increase replication time (and even increase the master's
# Copy on Write memory and replica buffers).
# However, when parsing the RDB file directly from the socket, in order to avoid
# data loss it's only safe to flush the current dataset when the new dataset is
# fully loaded in memory, resulting in higher memory usage.
# For this reason we have the following options:
#
# "disabled" - Don't use diskless load (store the rdb file to the disk first)
# "swapdb" - Keep current db contents in RAM while parsing the data directly
# from the socket. Replicas in this mode can keep serving current
# dataset while replication is in progress, except for cases where
# they can't recognize master as having a data set from same
# replication history.
# Note that this requires sufficient memory, if you don't have it,
# you risk an OOM kill.
# "on-empty-db" - Use diskless load only when current dataset is empty. This is
# safer and avoid having old and new dataset loaded side by side
# during replication.
repl-diskless-load disabled
# Master send PINGs to its replicas in a predefined interval. It's possible to
# change this interval with the repl-ping-replica-period option. The default
# value is 10 seconds.
#
# repl-ping-replica-period 10
# The following option sets the replication timeout for:
#
# 1) Bulk transfer I/O during SYNC, from the point of view of replica.
# 2) Master timeout from the point of view of replicas (data, pings).
# 3) Replica timeout from the point of view of masters (REPLCONF ACK pings).
#
# It is important to make sure that this value is greater than the value
# specified for repl-ping-replica-period otherwise a timeout will be detected
# every time there is low traffic between the master and the replica. The default
# value is 60 seconds.
#
# repl-timeout 60
# Disable TCP_NODELAY on the replica socket after SYNC?
#
# If you select "yes" Redis will use a smaller number of TCP packets and
# less bandwidth to send data to replicas. But this can add a delay for
# the data to appear on the replica side, up to 40 milliseconds with
# Linux kernels using a default configuration.
#
# If you select "no" the delay for data to appear on the replica side will
# be reduced but more bandwidth will be used for replication.
#
# By default we optimize for low latency, but in very high traffic conditions
# or when the master and replicas are many hops away, turning this to "yes" may
# be a good idea.
repl-disable-tcp-nodelay no
# Set the replication backlog size. The backlog is a buffer that accumulates
# replica data when replicas are disconnected for some time, so that when a
# replica wants to reconnect again, often a full resync is not needed, but a
# partial resync is enough, just passing the portion of data the replica
# missed while disconnected.
#
# The bigger the replication backlog, the longer the replica can endure the
# disconnect and later be able to perform a partial resynchronization.
#
# The backlog is only allocated if there is at least one replica connected.
#
# repl-backlog-size 1mb
# After a master has no connected replicas for some time, the backlog will be
# freed. The following option configures the amount of seconds that need to
# elapse, starting from the time the last replica disconnected, for the backlog
# buffer to be freed.
#
# Note that replicas never free the backlog for timeout, since they may be
# promoted to masters later, and should be able to correctly "partially
# resynchronize" with other replicas: hence they should always accumulate backlog.
#
# A value of 0 means to never release the backlog.
#
# repl-backlog-ttl 3600
# During a fullsync, the master may decide to send both the RDB file and the
# replication stream to the replica in parallel. This approach shifts the
# responsibility of buffering the replication stream to the replica during the
# fullsync process. The replica accumulates the replication stream data until
# the RDB file is fully loaded. Once the RDB delivery is completed and
# successfully loaded, the replica begins processing and applying the
# accumulated replication data to the db. The configuration below controls how
# much replication data the replica can accumulate during a fullsync.
#
# When the replica reaches this limit, it will stop accumulating further data.
# At this point, additional data accumulation may occur on the master side
# depending on the 'client-output-buffer-limit <replica>' config of master.
#
# A value of 0 means replica inherits hard limit of
# 'client-output-buffer-limit <replica>' config to limit accumulation size.
#
# replica-full-sync-buffer-limit 0
# The replica priority is an integer number published by Redis in the INFO
# output. It is used by Redis Sentinel in order to select a replica to promote
# into a master if the master is no longer working correctly.
#
# A replica with a low priority number is considered better for promotion, so
# for instance if there are three replicas with priority 10, 100, 25 Sentinel
# will pick the one with priority 10, that is the lowest.
#
# However a special priority of 0 marks the replica as not able to perform the
# role of master, so a replica with priority of 0 will never be selected by
# Redis Sentinel for promotion.
#
# By default the priority is 100.
replica-priority 100
# The propagation error behavior controls how Redis will behave when it is
# unable to handle a command being processed in the replication stream from a master
# or processed while reading from an AOF file. Errors that occur during propagation
# are unexpected, and can cause data inconsistency. However, there are edge cases
# in earlier versions of Redis where it was possible for the server to replicate or persist
# commands that would fail on future versions. For this reason the default behavior
# is to ignore such errors and continue processing commands.
#
# If an application wants to ensure there is no data divergence, this configuration
# should be set to 'panic' instead. The value can also be set to 'panic-on-replicas'
# to only panic when a replica encounters an error on the replication stream. One of
# these two panic values will become the default value in the future once there are
# sufficient safety mechanisms in place to prevent false positive crashes.
#
# propagation-error-behavior ignore
# Replica ignore disk write errors controls the behavior of a replica when it is
# unable to persist a write command received from its master to disk. By default,
# this configuration is set to 'no' and will crash the replica in this condition.
# It is not recommended to change this default, however in order to be compatible
# with older versions of Redis this config can be toggled to 'yes' which will just
# log a warning and execute the write command it got from the master.
#
# replica-ignore-disk-write-errors no
# -----------------------------------------------------------------------------
# By default, Redis Sentinel includes all replicas in its reports. A replica
# can be excluded from Redis Sentinel's announcements. An unannounced replica
# will be ignored by the 'sentinel replicas <master>' command and won't be
# exposed to Redis Sentinel's clients.
#
# This option does not change the behavior of replica-priority. Even with
# replica-announced set to 'no', the replica can be promoted to master. To
# prevent this behavior, set replica-priority to 0.
#
# replica-announced yes
# It is possible for a master to stop accepting writes if there are less than
# N replicas connected, having a lag less or equal than M seconds.
#
# The N replicas need to be in "online" state.
#
# The lag in seconds, that must be <= the specified value, is calculated from
# the last ping received from the replica, that is usually sent every second.
#
# This option does not GUARANTEE that N replicas will accept the write, but
# will limit the window of exposure for lost writes in case not enough replicas
# are available, to the specified number of seconds.
#
# For example to require at least 3 replicas with a lag <= 10 seconds use:
#
# min-replicas-to-write 3
# min-replicas-max-lag 10
#
# Setting one or the other to 0 disables the feature.
#
# By default min-replicas-to-write is set to 0 (feature disabled) and
# min-replicas-max-lag is set to 10.
# A Redis master is able to list the address and port of the attached
# replicas in different ways. For example the "INFO replication" section
# offers this information, which is used, among other tools, by
# Redis Sentinel in order to discover replica instances.
# Another place where this info is available is in the output of the
# "ROLE" command of a master.
#
# The listed IP address and port normally reported by a replica is
# obtained in the following way:
#
# IP: The address is auto detected by checking the peer address
# of the socket used by the replica to connect with the master.
#
# Port: The port is communicated by the replica during the replication
# handshake, and is normally the port that the replica is using to
# listen for connections.
#
# However when port forwarding or Network Address Translation (NAT) is
# used, the replica may actually be reachable via different IP and port
# pairs. The following two options can be used by a replica in order to
# report to its master a specific set of IP and port, so that both INFO
# and ROLE will report those values.
#
# There is no need to use both the options if you need to override just
# the port or the IP address.
#
# replica-announce-ip 5.5.5.5
# replica-announce-port 1234
############################### KEYS TRACKING #################################
# Redis implements server assisted support for client side caching of values.
# This is implemented using an invalidation table that remembers, using
# a radix key indexed by key name, what clients have which keys. In turn
# this is used in order to send invalidation messages to clients. Please
# check this page to understand more about the feature:
#
# https://redis.io/docs/latest/develop/use/client-side-caching/
#
# When tracking is enabled for a client, all the read only queries are assumed
# to be cached: this will force Redis to store information in the invalidation
# table. When keys are modified, such information is flushed away, and
# invalidation messages are sent to the clients. However if the workload is
# heavily dominated by reads, Redis could use more and more memory in order
# to track the keys fetched by many clients.
#
# For this reason it is possible to configure a maximum fill value for the
# invalidation table. By default it is set to 1M of keys, and once this limit
# is reached, Redis will start to evict keys in the invalidation table
# even if they were not modified, just to reclaim memory: this will in turn
# force the clients to invalidate the cached values. Basically the table
# maximum size is a trade off between the memory you want to spend server
# side to track information about who cached what, and the ability of clients
# to retain cached objects in memory.
#
# If you set the value to 0, it means there are no limits, and Redis will
# retain as many keys as needed in the invalidation table.
# In the "stats" INFO section, you can find information about the number of
# keys in the invalidation table at every given moment.
#
# Note: when key tracking is used in broadcasting mode, no memory is used
# in the server side so this setting is useless.
#
# tracking-table-max-keys 1000000
################################## SECURITY ###################################
# Warning: since Redis is pretty fast, an outside user can try up to
# 1 million passwords per second against a modern box. This means that you
# should use very strong passwords, otherwise they will be very easy to break.
# Note that because the password is really a shared secret between the client
# and the server, and should not be memorized by any human, the password
# can be easily a long string from /dev/urandom or whatever, so by using a
# long and unguessable password no brute force attack will be possible.
# Redis ACL users are defined in the following format:
#
# user <username> ... acl rules ...
#
# For example:
#
# user worker +@list +@connection ~jobs:* on >ffa9203c493aa99
#
# The special username "default" is used for new connections. If this user
# has the "nopass" rule, then new connections will be immediately authenticated
# as the "default" user without the need of any password provided via the
# AUTH command. Otherwise if the "default" user is not flagged with "nopass"
# the connections will start in not authenticated state, and will require
# AUTH (or the HELLO command AUTH option) in order to be authenticated and
# start to work.
#
# The ACL rules that describe what a user can do are the following:
#
# on Enable the user: it is possible to authenticate as this user.
# off Disable the user: it's no longer possible to authenticate
# with this user, however the already authenticated connections
# will still work.
# skip-sanitize-payload RESTORE dump-payload sanitization is skipped.
# sanitize-payload RESTORE dump-payload is sanitized (default).
# +<command> Allow the execution of that command.
# May be used with `|` for allowing subcommands (e.g "+config|get")
# -<command> Disallow the execution of that command.
# May be used with `|` for blocking subcommands (e.g "-config|set")
# +@<category> Allow the execution of all the commands in such category
# with valid categories are like @admin, @set, @sortedset, ...
# and so forth, see the full list in the server.c file where
# the Redis command table is described and defined.
# The special category @all means all the commands, but currently
# present in the server, and that will be loaded in the future
# via modules.
# +<command>|first-arg Allow a specific first argument of an otherwise
# disabled command. It is only supported on commands with
# no sub-commands, and is not allowed as negative form
# like -SELECT|1, only additive starting with "+". This
# feature is deprecated and may be removed in the future.
# allcommands Alias for +@all. Note that it implies the ability to execute
# all the future commands loaded via the modules system.
# nocommands Alias for -@all.
# ~<pattern> Add a pattern of keys that can be mentioned as part of
# commands. For instance ~* allows all the keys. The pattern
# is a glob-style pattern like the one of KEYS.
# It is possible to specify multiple patterns.
# %R~<pattern> Add key read pattern that specifies which keys can be read
# from.
# %W~<pattern> Add key write pattern that specifies which keys can be
# written to.
# allkeys Alias for ~*
# resetkeys Flush the list of allowed keys patterns.
# &<pattern> Add a glob-style pattern of Pub/Sub channels that can be
# accessed by the user. It is possible to specify multiple channel
# patterns.
# allchannels Alias for &*
# resetchannels Flush the list of allowed channel patterns.
# ><password> Add this password to the list of valid password for the user.
# For example >mypass will add "mypass" to the list.
# This directive clears the "nopass" flag (see later).
# <<password> Remove this password from the list of valid passwords.
# nopass All the set passwords of the user are removed, and the user
# is flagged as requiring no password: it means that every
# password will work against this user. If this directive is
# used for the default user, every new connection will be
# immediately authenticated with the default user without
# any explicit AUTH command required. Note that the "resetpass"
# directive will clear this condition.
# resetpass Flush the list of allowed passwords. Moreover removes the
# "nopass" status. After "resetpass" the user has no associated
# passwords and there is no way to authenticate without adding
# some password (or setting it as "nopass" later).
# reset Performs the following actions: resetpass, resetkeys, resetchannels,
# allchannels (if acl-pubsub-default is set), off, clearselectors, -@all.
# The user returns to the same state it has immediately after its creation.
# (<options>) Create a new selector with the options specified within the
# parentheses and attach it to the user. Each option should be
# space separated. The first character must be ( and the last
# character must be ).
# clearselectors Remove all of the currently attached selectors.
# Note this does not change the "root" user permissions,
# which are the permissions directly applied onto the
# user (outside the parentheses).
#
# ACL rules can be specified in any order: for instance you can start with
# passwords, then flags, or key patterns. However note that the additive
# and subtractive rules will CHANGE MEANING depending on the ordering.
# For instance see the following example:
#
# user alice on +@all -DEBUG ~* >somepassword
#
# This will allow "alice" to use all the commands with the exception of the
# DEBUG command, since +@all added all the commands to the set of the commands
# alice can use, and later DEBUG was removed. However if we invert the order
# of two ACL rules the result will be different:
#
# user alice on -DEBUG +@all ~* >somepassword
#
# Now DEBUG was removed when alice had yet no commands in the set of allowed
# commands, later all the commands are added, so the user will be able to
# execute everything.
#
# Basically ACL rules are processed left-to-right.
#
# The following is a list of command categories and their meanings:
# * keyspace - Writing or reading from keys, databases, or their metadata
# in a type agnostic way. Includes DEL, RESTORE, DUMP, RENAME, EXISTS, DBSIZE,
# KEYS, EXPIRE, TTL, FLUSHALL, etc. Commands that may modify the keyspace,
# key or metadata will also have `write` category. Commands that only read
# the keyspace, key or metadata will have the `read` category.
# * read - Reading from keys (values or metadata). Note that commands that don't
# interact with keys, will not have either `read` or `write`.
# * write - Writing to keys (values or metadata)
# * admin - Administrative commands. Normal applications will never need to use
# these. Includes REPLICAOF, CONFIG, DEBUG, SAVE, MONITOR, ACL, SHUTDOWN, etc.
# * dangerous - Potentially dangerous (each should be considered with care for
# various reasons). This includes FLUSHALL, MIGRATE, RESTORE, SORT, KEYS,
# CLIENT, DEBUG, INFO, CONFIG, SAVE, REPLICAOF, etc.
# * connection - Commands affecting the connection or other connections.
# This includes AUTH, SELECT, COMMAND, CLIENT, ECHO, PING, etc.
# * blocking - Potentially blocking the connection until released by another
# command.
# * fast - Fast O(1) commands. May loop on the number of arguments, but not the
# number of elements in the key.
# * slow - All commands that are not Fast.
# * pubsub - PUBLISH / SUBSCRIBE related
# * transaction - WATCH / MULTI / EXEC related commands.
# * scripting - Scripting related.
# * set - Data type: sets related.
# * sortedset - Data type: zsets related.
# * list - Data type: lists related.
# * hash - Data type: hashes related.
# * string - Data type: strings related.
# * bitmap - Data type: bitmaps related.
# * hyperloglog - Data type: hyperloglog related.
# * geo - Data type: geo related.
# * stream - Data type: streams related.
#
# For more information about ACL configuration please refer to
# the Redis web site at https://redis.io/docs/latest/operate/oss_and_stack/management/security/acl/
# ACL LOG
#
# The ACL Log tracks failed commands and authentication events associated
# with ACLs. The ACL Log is useful to troubleshoot failed commands blocked
# by ACLs. The ACL Log is stored in memory. You can reclaim memory with
# ACL LOG RESET. Define the maximum entry length of the ACL Log below.
acllog-max-len 128
# Using an external ACL file
#
# Instead of configuring users here in this file, it is possible to use
# a stand-alone file just listing users. The two methods cannot be mixed:
# if you configure users here and at the same time you activate the external
# ACL file, the server will refuse to start.
#
# The format of the external ACL user file is exactly the same as the
# format that is used inside redis.conf to describe users.
#
# aclfile /etc/redis/users.acl
# IMPORTANT NOTE: starting with Redis 6 "requirepass" is just a compatibility
# layer on top of the new ACL system. The option effect will be just setting
# the password for the default user. Clients will still authenticate using
# AUTH <password> as usually, or more explicitly with AUTH default <password>
# if they follow the new protocol: both will work.
#
# The requirepass is not compatible with aclfile option and the ACL LOAD
# command, these will cause requirepass to be ignored.
#
# requirepass foobared
# New users are initialized with restrictive permissions by default, via the
# equivalent of this ACL rule 'off resetkeys -@all'. Starting with Redis 6.2, it
# is possible to manage access to Pub/Sub channels with ACL rules as well. The
# default Pub/Sub channels permission if new users is controlled by the
# acl-pubsub-default configuration directive, which accepts one of these values:
#
# allchannels: grants access to all Pub/Sub channels
# resetchannels: revokes access to all Pub/Sub channels
#
# From Redis 7.0, acl-pubsub-default defaults to 'resetchannels' permission.
#
# acl-pubsub-default resetchannels
# Command renaming (DEPRECATED).
#
# ------------------------------------------------------------------------
# WARNING: avoid using this option if possible. Instead use ACLs to remove
# commands from the default user, and put them only in some admin user you
# create for administrative purposes.
# ------------------------------------------------------------------------
#
# It is possible to change the name of dangerous commands in a shared
# environment. For instance the CONFIG command may be renamed into something
# hard to guess so that it will still be available for internal-use tools
# but not available for general clients.
#
# Example:
#
# rename-command CONFIG b840fc02d524045429941cc15f59e41cb7be6c52
#
# It is also possible to completely kill a command by renaming it into
# an empty string:
#
# rename-command CONFIG ""
#
# Please note that changing the name of commands that are logged into the
# AOF file or transmitted to replicas may cause problems.
################################### CLIENTS ####################################
# Set the max number of connected clients at the same time. By default
# this limit is set to 10000 clients, however if the Redis server is not
# able to configure the process file limit to allow for the specified limit
# the max number of allowed clients is set to the current file limit
# minus 32 (as Redis reserves a few file descriptors for internal uses).
#
# Once the limit is reached Redis will close all the new connections sending
# an error 'max number of clients reached'.
#
# IMPORTANT: When Redis Cluster is used, the max number of connections is also
# shared with the cluster bus: every node in the cluster will use two
# connections, one incoming and another outgoing. It is important to size the
# limit accordingly in case of very large clusters.
#
# maxclients 10000
############################## MEMORY MANAGEMENT ################################
# Set a memory usage limit to the specified amount of bytes.
# When the memory limit is reached Redis will try to remove keys
# according to the eviction policy selected (see maxmemory-policy).
#
# If Redis can't remove keys according to the policy, or if the policy is
# set to 'noeviction', Redis will start to reply with errors to commands
# that would use more memory, like SET, LPUSH, and so on, and will continue
# to reply to read-only commands like GET.
#
# This option is usually useful when using Redis as an LRU or LFU cache, or to
# set a hard memory limit for an instance (using the 'noeviction' policy).
#
# WARNING: If you have replicas attached to an instance with maxmemory on,
# the size of the output buffers needed to feed the replicas are subtracted
# from the used memory count, so that network problems / resyncs will
# not trigger a loop where keys are evicted, and in turn the output
# buffer of replicas is full with DELs of keys evicted triggering the deletion
# of more keys, and so forth until the database is completely emptied.
#
# In short... if you have replicas attached it is suggested that you set a lower
# limit for maxmemory so that there is some free RAM on the system for replica
# output buffers (but this is not needed if the policy is 'noeviction').
#
# maxmemory <bytes>
# MAXMEMORY POLICY: how Redis will select what to remove when maxmemory
# is reached. You can select one from the following behaviors:
#
# volatile-lru -> Evict using approximated LRU, only keys with an expire set.
# allkeys-lru -> Evict any key using approximated LRU.
# volatile-lfu -> Evict using approximated LFU, only keys with an expire set.
# allkeys-lfu -> Evict any key using approximated LFU.
# volatile-random -> Remove a random key having an expire set.
# allkeys-random -> Remove a random key, any key.
# volatile-ttl -> Remove the key with the nearest expire time (minor TTL)
# noeviction -> Don't evict anything, just return an error on write operations.
#
# LRU means Least Recently Used
# LFU means Least Frequently Used
#
# Both LRU, LFU and volatile-ttl are implemented using approximated
# randomized algorithms.
#
# Note: with any of the above policies, when there are no suitable keys for
# eviction, Redis will return an error on write operations that require
# more memory. These are usually commands that create new keys, add data or
# modify existing keys. A few examples are: SET, INCR, HSET, LPUSH, SUNIONSTORE,
# SORT (due to the STORE argument), and EXEC (if the transaction includes any
# command that requires memory).
#
# The default is:
#
# maxmemory-policy noeviction
# LRU, LFU and minimal TTL algorithms are not precise algorithms but approximated
# algorithms (in order to save memory), so you can tune it for speed or
# accuracy. By default Redis will check five keys and pick the one that was
# used least recently, you can change the sample size using the following
# configuration directive.
#
# The default of 5 produces good enough results. 10 Approximates very closely
# true LRU but costs more CPU. 3 is faster but not very accurate. The maximum
# value that can be set is 64.
#
# maxmemory-samples 5
# Eviction processing is designed to function well with the default setting.
# If there is an unusually large amount of write traffic, this value may need to
# be increased. Decreasing this value may reduce latency at the risk of
# eviction processing effectiveness
# 0 = minimum latency, 10 = default, 100 = process without regard to latency
#
# maxmemory-eviction-tenacity 10
# Starting from Redis 5, by default a replica will ignore its maxmemory setting
# (unless it is promoted to master after a failover or manually). It means
# that the eviction of keys will be just handled by the master, sending the
# DEL commands to the replica as keys evict in the master side.
#
# This behavior ensures that masters and replicas stay consistent, and is usually
# what you want, however if your replica is writable, or you want the replica
# to have a different memory setting, and you are sure all the writes performed
# to the replica are idempotent, then you may change this default (but be sure
# to understand what you are doing).
#
# Note that since the replica by default does not evict, it may end using more
# memory than the one set via maxmemory (there are certain buffers that may
# be larger on the replica, or data structures may sometimes take more memory
# and so forth). So make sure you monitor your replicas and make sure they
# have enough memory to never hit a real out-of-memory condition before the
# master hits the configured maxmemory setting.
#
# replica-ignore-maxmemory yes
# Redis reclaims expired keys in two ways: upon access when those keys are
# found to be expired, and also in background, in what is called the
# "active expire key". The key space is slowly and interactively scanned
# looking for expired keys to reclaim, so that it is possible to free memory
# of keys that are expired and will never be accessed again in a short time.
#
# The default effort of the expire cycle will try to avoid having more than
# ten percent of expired keys still in memory, and will try to avoid consuming
# more than 25% of total memory and to add latency to the system. However
# it is possible to increase the expire "effort" that is normally set to
# "1", to a greater value, up to the value "10". At its maximum value the
# system will use more CPU, longer cycles (and technically may introduce
# more latency), and will tolerate less already expired keys still present
# in the system. It's a tradeoff between memory, CPU and latency.
#
# active-expire-effort 1
############################# LAZY FREEING ####################################
# Redis has two primitives to delete keys. One is called DEL and is a blocking
# deletion of the object. It means that the server stops processing new commands
# in order to reclaim all the memory associated with an object in a synchronous
# way. If the key deleted is associated with a small object, the time needed
# in order to execute the DEL command is very small and comparable to most other
# O(1) or O(log_N) commands in Redis. However if the key is associated with an
# aggregated value containing millions of elements, the server can block for
# a long time (even seconds) in order to complete the operation.
#
# For the above reasons Redis also offers non blocking deletion primitives
# such as UNLINK (non blocking DEL) and the ASYNC option of FLUSHALL and
# FLUSHDB commands, in order to reclaim memory in background. Those commands
# are executed in constant time. Another thread will incrementally free the
# object in the background as fast as possible.
#
# DEL, UNLINK and ASYNC option of FLUSHALL and FLUSHDB are user-controlled.
# It's up to the design of the application to understand when it is a good
# idea to use one or the other. However the Redis server sometimes has to
# delete keys or flush the whole database as a side effect of other operations.
# Specifically Redis deletes objects independently of a user call in the
# following scenarios:
#
# 1) On eviction, because of the maxmemory and maxmemory policy configurations,
# in order to make room for new data, without going over the specified
# memory limit.
# 2) Because of expire: when a key with an associated time to live (see the
# EXPIRE command) must be deleted from memory.
# 3) Because of a side effect of a command that stores data on a key that may
# already exist. For example the RENAME command may delete the old key
# content when it is replaced with another one. Similarly SUNIONSTORE
# or SORT with STORE option may delete existing keys. The SET command
# itself removes any old content of the specified key in order to replace
# it with the specified string.
# 4) During replication, when a replica performs a full resynchronization with
# its master, the content of the whole database is removed in order to
# load the RDB file just transferred.
#
# In all the above cases the default is to delete objects in a blocking way,
# like if DEL was called. However you can configure each case specifically
# in order to instead release memory in a non-blocking way like if UNLINK
# was called, using the following configuration directives.
lazyfree-lazy-eviction no
lazyfree-lazy-expire no
lazyfree-lazy-server-del no
replica-lazy-flush no
# It is also possible, for the case when to replace the user code DEL calls
# with UNLINK calls is not easy, to modify the default behavior of the DEL
# command to act exactly like UNLINK, using the following configuration
# directive:
lazyfree-lazy-user-del no
# FLUSHDB, FLUSHALL, SCRIPT FLUSH and FUNCTION FLUSH support both asynchronous and synchronous
# deletion, which can be controlled by passing the [SYNC|ASYNC] flags into the
# commands. When neither flag is passed, this directive will be used to determine
# if the data should be deleted asynchronously.
lazyfree-lazy-user-flush no
################################ THREADED I/O #################################
# Redis is mostly single threaded, however there are certain threaded
# operations such as UNLINK, slow I/O accesses and other things that are
# performed on side threads.
#
# Now it is also possible to handle Redis clients socket reads and writes
# in different I/O threads. Since especially writing is so slow, normally
# Redis users use pipelining in order to speed up the Redis performances per
# core, and spawn multiple instances in order to scale more. Using I/O
# threads it is possible to easily speedup several times Redis without resorting
# to pipelining nor sharding of the instance.
#
# By default threading is disabled, we suggest enabling it only in machines
# that have at least 4 or more cores, leaving at least one spare core.
# We also recommend using threaded I/O only if you actually have performance
# problems, with Redis instances being able to use a quite big percentage of
# CPU time, otherwise there is no point in using this feature.
#
# So for instance if you have a four cores boxes, try to use 3 I/O
# threads, if you have a 8 cores, try to use 7 threads. In order to
# enable I/O threads use the following configuration directive:
#
# io-threads 4
#
# Setting io-threads to 1 will just use the main thread as usual.
# When I/O threads are enabled, we not only use threads for writes, that
# is to thread the write(2) syscall and transfer the client buffers to the
# socket, but also use threads for reads and protocol parsing.
#
# NOTE: If you want to test the Redis speedup using redis-benchmark, make
# sure you also run the benchmark itself in threaded mode, using the
# --threads option to match the number of Redis threads, otherwise you'll not
# be able to notice the improvements.
############################ KERNEL OOM CONTROL ##############################
# On Linux, it is possible to hint the kernel OOM killer on what processes
# should be killed first when out of memory.
#
# Enabling this feature makes Redis actively control the oom_score_adj value
# for all its processes, depending on their role. The default scores will
# attempt to have background child processes killed before all others, and
# replicas killed before masters.
#
# Redis supports these options:
#
# no: Don't make changes to oom-score-adj (default).
# yes: Alias to "relative" see below.
# absolute: Values in oom-score-adj-values are written as is to the kernel.
# relative: Values are used relative to the initial value of oom_score_adj when
# the server starts and are then clamped to a range of -1000 to 1000.
# Because typically the initial value is 0, they will often match the
# absolute values.
oom-score-adj no
# When oom-score-adj is used, this directive controls the specific values used
# for master, replica and background child processes. Values range -2000 to
# 2000 (higher means more likely to be killed).
#
# Unprivileged processes (not root, and without CAP_SYS_RESOURCE capabilities)
# can freely increase their value, but not decrease it below its initial
# settings. This means that setting oom-score-adj to "relative" and setting the
# oom-score-adj-values to positive values will always succeed.
oom-score-adj-values 0 200 800
#################### KERNEL transparent hugepage CONTROL ######################
# Usually the kernel Transparent Huge Pages control is set to "madvise" or
# "never" by default (/sys/kernel/mm/transparent_hugepage/enabled), in which
# case this config has no effect. On systems in which it is set to "always",
# redis will attempt to disable it specifically for the redis process in order
# to avoid latency problems specifically with fork(2) and CoW.
# If for some reason you prefer to keep it enabled, you can set this config to
# "no" and the kernel global to "always".
disable-thp yes
############################## APPEND ONLY MODE ###############################
# By default Redis asynchronously dumps the dataset on disk. This mode is
# good enough in many applications, but an issue with the Redis process or
# a power outage may result into a few minutes of writes lost (depending on
# the configured save points).
#
# The Append Only File is an alternative persistence mode that provides
# much better durability. For instance using the default data fsync policy
# (see later in the config file) Redis can lose just one second of writes in a
# dramatic event like a server power outage, or a single write if something
# wrong with the Redis process itself happens, but the operating system is
# still running correctly.
#
# AOF and RDB persistence can be enabled at the same time without problems.
# If the AOF is enabled on startup Redis will load the AOF, that is the file
# with the better durability guarantees.
#
# Note that changing this value in a config file of an existing database and
# restarting the server can lead to data loss. A conversion needs to be done
# by setting it via CONFIG command on a live server first.
#
# Please check https://redis.io/docs/latest/operate/oss_and_stack/management/persistence/ for more information.
appendonly no
# The base name of the append only file.
#
# Redis 7 and newer use a set of append-only files to persist the dataset
# and changes applied to it. There are two basic types of files in use:
#
# - Base files, which are a snapshot representing the complete state of the
# dataset at the time the file was created. Base files can be either in
# the form of RDB (binary serialized) or AOF (textual commands).
# - Incremental files, which contain additional commands that were applied
# to the dataset following the previous file.
#
# In addition, manifest files are used to track the files and the order in
# which they were created and should be applied.
#
# Append-only file names are created by Redis following a specific pattern.
# The file name's prefix is based on the 'appendfilename' configuration
# parameter, followed by additional information about the sequence and type.
#
# For example, if appendfilename is set to appendonly.aof, the following file
# names could be derived:
#
# - appendonly.aof.1.base.rdb as a base file.
# - appendonly.aof.1.incr.aof, appendonly.aof.2.incr.aof as incremental files.
# - appendonly.aof.manifest as a manifest file.
appendfilename "appendonly.aof"
# For convenience, Redis stores all persistent append-only files in a dedicated
# directory. The name of the directory is determined by the appenddirname
# configuration parameter.
appenddirname "appendonlydir"
# The fsync() call tells the Operating System to actually write data on disk
# instead of waiting for more data in the output buffer. Some OS will really flush
# data on disk, some other OS will just try to do it ASAP.
#
# Redis supports three different modes:
#
# no: don't fsync, just let the OS flush the data when it wants. Faster.
# always: fsync after every write to the append only log. Slow, Safest.
# everysec: fsync only one time every second. Compromise.
#
# The default is "everysec", as that's usually the right compromise between
# speed and data safety. It's up to you to understand if you can relax this to
# "no" that will let the operating system flush the output buffer when
# it wants, for better performances (but if you can live with the idea of
# some data loss consider the default persistence mode that's snapshotting),
# or on the contrary, use "always" that's very slow but a bit safer than
# everysec.
#
# More details please check the following article:
# http://antirez.com/post/redis-persistence-demystified.html
#
# If unsure, use "everysec".
# appendfsync always
appendfsync everysec
# appendfsync no
# When the AOF fsync policy is set to always or everysec, and a background
# saving process (a background save or AOF log background rewriting) is
# performing a lot of I/O against the disk, in some Linux configurations
# Redis may block too long on the fsync() call. Note that there is no fix for
# this currently, as even performing fsync in a different thread will block
# our synchronous write(2) call.
#
# In order to mitigate this problem it's possible to use the following option
# that will prevent fsync() from being called in the main process while a
# BGSAVE or BGREWRITEAOF is in progress.
#
# This means that while another child is saving, the durability of Redis is
# the same as "appendfsync no". In practical terms, this means that it is
# possible to lose up to 30 seconds of log in the worst scenario (with the
# default Linux settings).
#
# If you have latency problems turn this to "yes". Otherwise leave it as
# "no" that is the safest pick from the point of view of durability.
no-appendfsync-on-rewrite no
# Automatic rewrite of the append only file.
# Redis is able to automatically rewrite the log file implicitly calling
# BGREWRITEAOF when the AOF log size grows by the specified percentage.
#
# This is how it works: Redis remembers the size of the AOF file after the
# latest rewrite (if no rewrite has happened since the restart, the size of
# the AOF at startup is used).
#
# This base size is compared to the current size. If the current size is
# bigger than the specified percentage, the rewrite is triggered. Also
# you need to specify a minimal size for the AOF file to be rewritten, this
# is useful to avoid rewriting the AOF file even if the percentage increase
# is reached but it is still pretty small.
#
# Specify a percentage of zero in order to disable the automatic AOF
# rewrite feature.
auto-aof-rewrite-percentage 100
auto-aof-rewrite-min-size 64mb
# An AOF file may be found to be truncated at the end during the Redis
# startup process, when the AOF data gets loaded back into memory.
# This may happen when the system where Redis is running
# crashes, especially when an ext4 filesystem is mounted without the
# data=ordered option (however this can't happen when Redis itself
# crashes or aborts but the operating system still works correctly).
#
# Redis can either exit with an error when this happens, or load as much
# data as possible (the default now) and start if the AOF file is found
# to be truncated at the end. The following option controls this behavior.
#
# If aof-load-truncated is set to yes, a truncated AOF file is loaded and
# the Redis server starts emitting a log to inform the user of the event.
# Otherwise if the option is set to no, the server aborts with an error
# and refuses to start. When the option is set to no, the user requires
# to fix the AOF file using the "redis-check-aof" utility before to restart
# the server.
#
# Note that if the AOF file will be found to be corrupted in the middle
# the server will still exit with an error. This option only applies when
# Redis will try to read more data from the AOF file but not enough bytes
# will be found.
aof-load-truncated yes
# Redis can create append-only base files in either RDB or AOF formats. Using
# the RDB format is always faster and more efficient, and disabling it is only
# supported for backward compatibility purposes.
aof-use-rdb-preamble yes
# Redis supports recording timestamp annotations in the AOF to support restoring
# the data from a specific point-in-time. However, using this capability changes
# the AOF format in a way that may not be compatible with existing AOF parsers.
aof-timestamp-enabled no
################################ SHUTDOWN #####################################
# Maximum time to wait for replicas when shutting down, in seconds.
#
# During shut down, a grace period allows any lagging replicas to catch up with
# the latest replication offset before the master exists. This period can
# prevent data loss, especially for deployments without configured disk backups.
#
# The 'shutdown-timeout' value is the grace period's duration in seconds. It is
# only applicable when the instance has replicas. To disable the feature, set
# the value to 0.
#
# shutdown-timeout 10
# When Redis receives a SIGINT or SIGTERM, shutdown is initiated and by default
# an RDB snapshot is written to disk in a blocking operation if save points are configured.
# The options used on signaled shutdown can include the following values:
# default: Saves RDB snapshot only if save points are configured.
# Waits for lagging replicas to catch up.
# save: Forces a DB saving operation even if no save points are configured.
# nosave: Prevents DB saving operation even if one or more save points are configured.
# now: Skips waiting for lagging replicas.
# force: Ignores any errors that would normally prevent the server from exiting.
#
# Any combination of values is allowed as long as "save" and "nosave" are not set simultaneously.
# Example: "nosave force now"
#
# shutdown-on-sigint default
# shutdown-on-sigterm default
################ NON-DETERMINISTIC LONG BLOCKING COMMANDS #####################
# Maximum time in milliseconds for EVAL scripts, functions and in some cases
# modules' commands before Redis can start processing or rejecting other clients.
#
# If the maximum execution time is reached Redis will start to reply to most
# commands with a BUSY error.
#
# In this state Redis will only allow a handful of commands to be executed.
# For instance, SCRIPT KILL, FUNCTION KILL, SHUTDOWN NOSAVE and possibly some
# module specific 'allow-busy' commands.
#
# SCRIPT KILL and FUNCTION KILL will only be able to stop a script that did not
# yet call any write commands, so SHUTDOWN NOSAVE may be the only way to stop
# the server in the case a write command was already issued by the script when
# the user doesn't want to wait for the natural termination of the script.
#
# The default is 5 seconds. It is possible to set it to 0 or a negative value
# to disable this mechanism (uninterrupted execution). Note that in the past
# this config had a different name, which is now an alias, so both of these do
# the same:
# lua-time-limit 5000
# busy-reply-threshold 5000
################################ REDIS CLUSTER ###############################
# Normal Redis instances can't be part of a Redis Cluster; only nodes that are
# started as cluster nodes can. In order to start a Redis instance as a
# cluster node enable the cluster support uncommenting the following:
#
# cluster-enabled yes
# Every cluster node has a cluster configuration file. This file is not
# intended to be edited by hand. It is created and updated by Redis nodes.
# Every Redis Cluster node requires a different cluster configuration file.
# Make sure that instances running in the same system do not have
# overlapping cluster configuration file names.
#
# cluster-config-file nodes-6379.conf
# Cluster node timeout is the amount of milliseconds a node must be unreachable
# for it to be considered in failure state.
# Most other internal time limits are a multiple of the node timeout.
#
# cluster-node-timeout 15000
# The cluster port is the port that the cluster bus will listen for inbound connections on. When set
# to the default value, 0, it will be bound to the command port + 10000. Setting this value requires
# you to specify the cluster bus port when executing cluster meet.
# cluster-port 0
# A replica of a failing master will avoid to start a failover if its data
# looks too old.
#
# There is no simple way for a replica to actually have an exact measure of
# its "data age", so the following two checks are performed:
#
# 1) If there are multiple replicas able to failover, they exchange messages
# in order to try to give an advantage to the replica with the best
# replication offset (more data from the master processed).
# Replicas will try to get their rank by offset, and apply to the start
# of the failover a delay proportional to their rank.
#
# 2) Every single replica computes the time of the last interaction with
# its master. This can be the last ping or command received (if the master
# is still in the "connected" state), or the time that elapsed since the
# disconnection with the master (if the replication link is currently down).
# If the last interaction is too old, the replica will not try to failover
# at all.
#
# The point "2" can be tuned by user. Specifically a replica will not perform
# the failover if, since the last interaction with the master, the time
# elapsed is greater than:
#
# (node-timeout * cluster-replica-validity-factor) + repl-ping-replica-period
#
# So for example if node-timeout is 30 seconds, and the cluster-replica-validity-factor
# is 10, and assuming a default repl-ping-replica-period of 10 seconds, the
# replica will not try to failover if it was not able to talk with the master
# for longer than 310 seconds.
#
# A large cluster-replica-validity-factor may allow replicas with too old data to failover
# a master, while a too small value may prevent the cluster from being able to
# elect a replica at all.
#
# For maximum availability, it is possible to set the cluster-replica-validity-factor
# to a value of 0, which means, that replicas will always try to failover the
# master regardless of the last time they interacted with the master.
# (However they'll always try to apply a delay proportional to their
# offset rank).
#
# Zero is the only value able to guarantee that when all the partitions heal
# the cluster will always be able to continue.
#
# cluster-replica-validity-factor 10
# Cluster replicas are able to migrate to orphaned masters, that are masters
# that are left without working replicas. This improves the cluster ability
# to resist to failures as otherwise an orphaned master can't be failed over
# in case of failure if it has no working replicas.
#
# Replicas migrate to orphaned masters only if there are still at least a
# given number of other working replicas for their old master. This number
# is the "migration barrier". A migration barrier of 1 means that a replica
# will migrate only if there is at least 1 other working replica for its master
# and so forth. It usually reflects the number of replicas you want for every
# master in your cluster.
#
# Default is 1 (replicas migrate only if their masters remain with at least
# one replica). To disable migration just set it to a very large value or
# set cluster-allow-replica-migration to 'no'.
# A value of 0 can be set but is useful only for debugging and dangerous
# in production.
#
# cluster-migration-barrier 1
# Turning off this option allows to use less automatic cluster configuration.
# It both disables migration to orphaned masters and migration from masters
# that became empty.
#
# Default is 'yes' (allow automatic migrations).
#
# cluster-allow-replica-migration yes
# By default Redis Cluster nodes stop accepting queries if they detect there
# is at least a hash slot uncovered (no available node is serving it).
# This way if the cluster is partially down (for example a range of hash slots
# are no longer covered) all the cluster becomes, eventually, unavailable.
# It automatically returns available as soon as all the slots are covered again.
#
# However sometimes you want the subset of the cluster which is working,
# to continue to accept queries for the part of the key space that is still
# covered. In order to do so, just set the cluster-require-full-coverage
# option to no.
#
# cluster-require-full-coverage yes
# This option, when set to yes, prevents replicas from trying to failover its
# master during master failures. However the replica can still perform a
# manual failover, if forced to do so.
#
# This is useful in different scenarios, especially in the case of multiple
# data center operations, where we want one side to never be promoted if not
# in the case of a total DC failure.
#
# cluster-replica-no-failover no
# This option, when set to yes, allows nodes to serve read traffic while the
# cluster is in a down state, as long as it believes it owns the slots.
#
# This is useful for two cases. The first case is for when an application
# doesn't require consistency of data during node failures or network partitions.
# One example of this is a cache, where as long as the node has the data it
# should be able to serve it.
#
# The second use case is for configurations that don't meet the recommended
# three shards but want to enable cluster mode and scale later. A
# master outage in a 1 or 2 shard configuration causes a read/write outage to the
# entire cluster without this option set, with it set there is only a write outage.
# Without a quorum of masters, slot ownership will not change automatically.
#
# cluster-allow-reads-when-down no
# This option, when set to yes, allows nodes to serve pubsub shard traffic while
# the cluster is in a down state, as long as it believes it owns the slots.
#
# This is useful if the application would like to use the pubsub feature even when
# the cluster global stable state is not OK. If the application wants to make sure only
# one shard is serving a given channel, this feature should be kept as yes.
#
# cluster-allow-pubsubshard-when-down yes
# Cluster link send buffer limit is the limit on the memory usage of an individual
# cluster bus link's send buffer in bytes. Cluster links would be freed if they exceed
# this limit. This is to primarily prevent send buffers from growing unbounded on links
# toward slow peers (E.g. PubSub messages being piled up).
# This limit is disabled by default. Enable this limit when 'mem_cluster_links' INFO field
# and/or 'send-buffer-allocated' entries in the 'CLUSTER LINKS` command output continuously increase.
# Minimum limit of 1gb is recommended so that cluster link buffer can fit in at least a single
# PubSub message by default. (client-query-buffer-limit default value is 1gb)
#
# cluster-link-sendbuf-limit 0
# Clusters can configure their announced hostname using this config. This is a common use case for
# applications that need to use TLS Server Name Indication (SNI) or dealing with DNS based
# routing. By default this value is only shown as additional metadata in the CLUSTER SLOTS
# command, but can be changed using 'cluster-preferred-endpoint-type' config. This value is
# communicated along the clusterbus to all nodes, setting it to an empty string will remove
# the hostname and also propagate the removal.
#
# cluster-announce-hostname ""
# Clusters can configure an optional nodename to be used in addition to the node ID for
# debugging and admin information. This name is broadcasted between nodes, so will be used
# in addition to the node ID when reporting cross node events such as node failures.
# cluster-announce-human-nodename ""
# Clusters can advertise how clients should connect to them using either their IP address,
# a user defined hostname, or by declaring they have no endpoint. Which endpoint is
# shown as the preferred endpoint is set by using the cluster-preferred-endpoint-type
# config with values 'ip', 'hostname', or 'unknown-endpoint'. This value controls how
# the endpoint returned for MOVED/ASKING requests as well as the first field of CLUSTER SLOTS.
# If the preferred endpoint type is set to hostname, but no announced hostname is set, a '?'
# will be returned instead.
#
# When a cluster advertises itself as having an unknown endpoint, it's indicating that
# the server doesn't know how clients can reach the cluster. This can happen in certain
# networking situations where there are multiple possible routes to the node, and the
# server doesn't know which one the client took. In this case, the server is expecting
# the client to reach out on the same endpoint it used for making the last request, but use
# the port provided in the response.
#
# cluster-preferred-endpoint-type ip
# This configuration defines the sampling ratio (0-100) for checking command
# compatibility in cluster mode. When a command is executed, it is sampled at
# the specified ratio to determine if it complies with Redis cluster constraints,
# such as cross-slot restrictions.
#
# - A value of 0 means no commands are sampled for compatibility checks.
# - A value of 100 means all commands are checked.
# - Intermediate values (e.g., 10) mean that approximately 10% of the commands
# are randomly selected for compatibility verification.
#
# Higher sampling ratios may introduce additional performance overhead, especially
# under high QPS. The default value is 0 (no sampling).
#
# cluster-compatibility-sample-ratio 0
# In order to setup your cluster make sure to read the documentation
# available at https://redis.io web site.
########################## CLUSTER DOCKER/NAT support ########################
# In certain deployments, Redis Cluster nodes address discovery fails, because
# addresses are NAT-ted or because ports are forwarded (the typical case is
# Docker and other containers).
#
# In order to make Redis Cluster working in such environments, a static
# configuration where each node knows its public address is needed. The
# following four options are used for this scope, and are:
#
# * cluster-announce-ip
# * cluster-announce-port
# * cluster-announce-tls-port
# * cluster-announce-bus-port
#
# Each instructs the node about its address, client ports (for connections
# without and with TLS) and cluster message bus port. The information is then
# published in the header of the bus packets so that other nodes will be able to
# correctly map the address of the node publishing the information.
#
# If tls-cluster is set to yes and cluster-announce-tls-port is omitted or set
# to zero, then cluster-announce-port refers to the TLS port. Note also that
# cluster-announce-tls-port has no effect if tls-cluster is set to no.
#
# If the above options are not used, the normal Redis Cluster auto-detection
# will be used instead.
#
# Note that when remapped, the bus port may not be at the fixed offset of
# clients port + 10000, so you can specify any port and bus-port depending
# on how they get remapped. If the bus-port is not set, a fixed offset of
# 10000 will be used as usual.
#
# Example:
#
# cluster-announce-ip 10.1.1.5
# cluster-announce-tls-port 6379
# cluster-announce-port 0
# cluster-announce-bus-port 6380
################################## SLOW LOG ###################################
# The Redis Slow Log is a system to log queries that exceeded a specified
# execution time. The execution time does not include the I/O operations
# like talking with the client, sending the reply and so forth,
# but just the time needed to actually execute the command (this is the only
# stage of command execution where the thread is blocked and can not serve
# other requests in the meantime).
#
# You can configure the slow log with two parameters: one tells Redis
# what is the execution time, in microseconds, to exceed in order for the
# command to get logged, and the other parameter is the length of the
# slow log. When a new command is logged the oldest one is removed from the
# queue of logged commands.
# The following time is expressed in microseconds, so 1000000 is equivalent
# to one second. Note that a negative number disables the slow log, while
# a value of zero forces the logging of every command.
slowlog-log-slower-than 10000
# There is no limit to this length. Just be aware that it will consume memory.
# You can reclaim memory used by the slow log with SLOWLOG RESET.
slowlog-max-len 128
################################ LATENCY MONITOR ##############################
# The Redis latency monitoring subsystem samples different operations
# at runtime in order to collect data related to possible sources of
# latency of a Redis instance.
#
# Via the LATENCY command this information is available to the user that can
# print graphs and obtain reports.
#
# The system only logs operations that were performed in a time equal or
# greater than the amount of milliseconds specified via the
# latency-monitor-threshold configuration directive. When its value is set
# to zero, the latency monitor is turned off.
#
# By default latency monitoring is disabled since it is mostly not needed
# if you don't have latency issues, and collecting data has a performance
# impact, that while very small, can be measured under big load. Latency
# monitoring can easily be enabled at runtime using the command
# "CONFIG SET latency-monitor-threshold <milliseconds>" if needed.
latency-monitor-threshold 0
################################ LATENCY TRACKING ##############################
# The Redis extended latency monitoring tracks the per command latencies and enables
# exporting the percentile distribution via the INFO latencystats command,
# and cumulative latency distributions (histograms) via the LATENCY command.
#
# By default, the extended latency monitoring is enabled since the overhead
# of keeping track of the command latency is very small.
# latency-tracking yes
# By default the exported latency percentiles via the INFO latencystats command
# are the p50, p99, and p999.
# latency-tracking-info-percentiles 50 99 99.9
############################# EVENT NOTIFICATION ##############################
# Redis can notify Pub/Sub clients about events happening in the key space.
# This feature is documented at https://redis.io/docs/latest/develop/use/keyspace-notifications/
#
# For instance if keyspace events notification is enabled, and a client
# performs a DEL operation on key "foo" stored in the Database 0, two
# messages will be published via Pub/Sub:
#
# PUBLISH __keyspace@0__:foo del
# PUBLISH __keyevent@0__:del foo
#
# It is possible to select the events that Redis will notify among a set
# of classes. Every class is identified by a single character:
#
# K Keyspace events, published with __keyspace@<db>__ prefix.
# E Keyevent events, published with __keyevent@<db>__ prefix.
# g Generic commands (non-type specific) like DEL, EXPIRE, RENAME, ...
# $ String commands
# l List commands
# s Set commands
# h Hash commands
# z Sorted set commands
# x Expired events (events generated every time a key expires)
# e Evicted events (events generated when a key is evicted for maxmemory)
# n New key events (Note: not included in the 'A' class)
# t Stream commands
# d Module key type events
# m Key-miss events (Note: It is not included in the 'A' class)
# A Alias for g$lshzxetd, so that the "AKE" string means all the events
# (Except key-miss events which are excluded from 'A' due to their
# unique nature).
#
# The "notify-keyspace-events" takes as argument a string that is composed
# of zero or multiple characters. The empty string means that notifications
# are disabled.
#
# Example: to enable list and generic events, from the point of view of the
# event name, use:
#
# notify-keyspace-events Elg
#
# Example 2: to get the stream of the expired keys subscribing to channel
# name __keyevent@0__:expired use:
#
# notify-keyspace-events Ex
#
# By default all notifications are disabled because most users don't need
# this feature and the feature has some overhead. Note that if you don't
# specify at least one of K or E, no events will be delivered.
notify-keyspace-events ""
############################### ADVANCED CONFIG ###############################
# Hashes are encoded using a memory efficient data structure when they have a
# small number of entries, and the biggest entry does not exceed a given
# threshold. These thresholds can be configured using the following directives.
hash-max-listpack-entries 512
hash-max-listpack-value 64
# Lists are also encoded in a special way to save a lot of space.
# The number of entries allowed per internal list node can be specified
# as a fixed maximum size or a maximum number of elements.
# For a fixed maximum size, use -5 through -1, meaning:
# -5: max size: 64 Kb <-- not recommended for normal workloads
# -4: max size: 32 Kb <-- not recommended
# -3: max size: 16 Kb <-- probably not recommended
# -2: max size: 8 Kb <-- good
# -1: max size: 4 Kb <-- good
# Positive numbers mean store up to _exactly_ that number of elements
# per list node.
# The highest performing option is usually -2 (8 Kb size) or -1 (4 Kb size),
# but if your use case is unique, adjust the settings as necessary.
list-max-listpack-size -2
# Lists may also be compressed.
# Compress depth is the number of quicklist ziplist nodes from *each* side of
# the list to *exclude* from compression. The head and tail of the list
# are always uncompressed for fast push/pop operations. Settings are:
# 0: disable all list compression
# 1: depth 1 means "don't start compressing until after 1 node into the list,
# going from either the head or tail"
# So: [head]->node->node->...->node->[tail]
# [head], [tail] will always be uncompressed; inner nodes will compress.
# 2: [head]->[next]->node->node->...->node->[prev]->[tail]
# 2 here means: don't compress head or head->next or tail->prev or tail,
# but compress all nodes between them.
# 3: [head]->[next]->[next]->node->node->...->node->[prev]->[prev]->[tail]
# etc.
list-compress-depth 0
# Sets have a special encoding when a set is composed
# of just strings that happen to be integers in radix 10 in the range
# of 64 bit signed integers.
# The following configuration setting sets the limit in the size of the
# set in order to use this special memory saving encoding.
set-max-intset-entries 512
# Sets containing non-integer values are also encoded using a memory efficient
# data structure when they have a small number of entries, and the biggest entry
# does not exceed a given threshold. These thresholds can be configured using
# the following directives.
set-max-listpack-entries 128
set-max-listpack-value 64
# Similarly to hashes and lists, sorted sets are also specially encoded in
# order to save a lot of space. This encoding is only used when the length and
# elements of a sorted set are below the following limits:
zset-max-listpack-entries 128
zset-max-listpack-value 64
# HyperLogLog sparse representation bytes limit. The limit includes the
# 16 bytes header. When a HyperLogLog using the sparse representation crosses
# this limit, it is converted into the dense representation.
#
# A value greater than 16000 is totally useless, since at that point the
# dense representation is more memory efficient.
#
# The suggested value is ~ 3000 in order to have the benefits of
# the space efficient encoding without slowing down too much PFADD,
# which is O(N) with the sparse encoding. The value can be raised to
# ~ 10000 when CPU is not a concern, but space is, and the data set is
# composed of many HyperLogLogs with cardinality in the 0 - 15000 range.
hll-sparse-max-bytes 3000
# Streams macro node max size / items. The stream data structure is a radix
# tree of big nodes that encode multiple items inside. Using this configuration
# it is possible to configure how big a single node can be in bytes, and the
# maximum number of items it may contain before switching to a new node when
# appending new stream entries. If any of the following settings are set to
# zero, the limit is ignored, so for instance it is possible to set just a
# max entries limit by setting max-bytes to 0 and max-entries to the desired
# value.
stream-node-max-bytes 4096
stream-node-max-entries 100
# Active rehashing uses 1 millisecond every 100 milliseconds of CPU time in
# order to help rehashing the main Redis hash table (the one mapping top-level
# keys to values). The hash table implementation Redis uses (see dict.c)
# performs a lazy rehashing: the more operation you run into a hash table
# that is rehashing, the more rehashing "steps" are performed, so if the
# server is idle the rehashing is never complete and some more memory is used
# by the hash table.
#
# The default is to use this millisecond 10 times every second in order to
# actively rehash the main dictionaries, freeing memory when possible.
#
# If unsure:
# use "activerehashing no" if you have hard latency requirements and it is
# not a good thing in your environment that Redis can reply from time to time
# to queries with 2 milliseconds delay.
#
# use "activerehashing yes" if you don't have such hard requirements but
# want to free memory asap when possible.
activerehashing yes
# The client output buffer limits can be used to force disconnection of clients
# that are not reading data from the server fast enough for some reason (a
# common reason is that a Pub/Sub client can't consume messages as fast as the
# publisher can produce them).
#
# The limit can be set differently for the three different classes of clients:
#
# normal -> normal clients including MONITOR clients
# replica -> replica clients
# pubsub -> clients subscribed to at least one pubsub channel or pattern
#
# The syntax of every client-output-buffer-limit directive is the following:
#
# client-output-buffer-limit <class> <hard limit> <soft limit> <soft seconds>
#
# A client is immediately disconnected once the hard limit is reached, or if
# the soft limit is reached and remains reached for the specified number of
# seconds (continuously).
# So for instance if the hard limit is 32 megabytes and the soft limit is
# 16 megabytes / 10 seconds, the client will get disconnected immediately
# if the size of the output buffers reach 32 megabytes, but will also get
# disconnected if the client reaches 16 megabytes and continuously overcomes
# the limit for 10 seconds.
#
# By default normal clients are not limited because they don't receive data
# without asking (in a push way), but just after a request, so only
# asynchronous clients may create a scenario where data is requested faster
# than it can read.
#
# Instead there is a default limit for pubsub and replica clients, since
# subscribers and replicas receive data in a push fashion.
#
# Note that it doesn't make sense to set the replica clients output buffer
# limit lower than the repl-backlog-size config (partial sync will succeed
# and then replica will get disconnected).
# Such a configuration is ignored (the size of repl-backlog-size will be used).
# This doesn't have memory consumption implications since the replica client
# will share the backlog buffers memory.
#
# Both the hard or the soft limit can be disabled by setting them to zero.
client-output-buffer-limit normal 0 0 0
client-output-buffer-limit replica 256mb 64mb 60
client-output-buffer-limit pubsub 32mb 8mb 60
# Client query buffers accumulate new commands. They are limited to a fixed
# amount by default in order to avoid that a protocol desynchronization (for
# instance due to a bug in the client) will lead to unbound memory usage in
# the query buffer. However you can configure it here if you have very special
# needs, such as a command with huge argument, or huge multi/exec requests or alike.
#
# client-query-buffer-limit 1gb
# In some scenarios client connections can hog up memory leading to OOM
# errors or data eviction. To avoid this we can cap the accumulated memory
# used by all client connections (all pubsub and normal clients). Once we
# reach that limit connections will be dropped by the server freeing up
# memory. The server will attempt to drop the connections using the most
# memory first. We call this mechanism "client eviction".
#
# Client eviction is configured using the maxmemory-clients setting as follows:
# 0 - client eviction is disabled (default)
#
# A memory value can be used for the client eviction threshold,
# for example:
# maxmemory-clients 1g
#
# A percentage value (between 1% and 100%) means the client eviction threshold
# is based on a percentage of the maxmemory setting. For example to set client
# eviction at 5% of maxmemory:
# maxmemory-clients 5%
# In the Redis protocol, bulk requests, that are, elements representing single
# strings, are normally limited to 512 mb. However you can change this limit
# here, but must be 1mb or greater
#
# proto-max-bulk-len 512mb
# Redis calls an internal function to perform many background tasks, like
# closing connections of clients in timeout, purging expired keys that are
# never requested, and so forth.
#
# Not all tasks are performed with the same frequency, but Redis checks for
# tasks to perform according to the specified "hz" value.
#
# By default "hz" is set to 10. Raising the value will use more CPU when
# Redis is idle, but at the same time will make Redis more responsive when
# there are many keys expiring at the same time, and timeouts may be
# handled with more precision.
#
# The range is between 1 and 500, however a value over 100 is usually not
# a good idea. Most users should use the default of 10 and raise this up to
# 100 only in environments where very low latency is required.
hz 10
# Normally it is useful to have an HZ value which is proportional to the
# number of clients connected. This is useful in order, for instance, to
# avoid too many clients are processed for each background task invocation
# in order to avoid latency spikes.
#
# Since the default HZ value by default is conservatively set to 10, Redis
# offers, and enables by default, the ability to use an adaptive HZ value
# which will temporarily raise when there are many connected clients.
#
# When dynamic HZ is enabled, the actual configured HZ will be used
# as a baseline, but multiples of the configured HZ value will be actually
# used as needed once more clients are connected. In this way an idle
# instance will use very little CPU time while a busy instance will be
# more responsive.
dynamic-hz yes
# When a child rewrites the AOF file, if the following option is enabled
# the file will be fsync-ed every 4 MB of data generated. This is useful
# in order to commit the file to the disk more incrementally and avoid
# big latency spikes.
aof-rewrite-incremental-fsync yes
# When redis saves RDB file, if the following option is enabled
# the file will be fsync-ed every 4 MB of data generated. This is useful
# in order to commit the file to the disk more incrementally and avoid
# big latency spikes.
rdb-save-incremental-fsync yes
# Redis LFU eviction (see maxmemory setting) can be tuned. However it is a good
# idea to start with the default settings and only change them after investigating
# how to improve the performances and how the keys LFU change over time, which
# is possible to inspect via the OBJECT FREQ command.
#
# There are two tunable parameters in the Redis LFU implementation: the
# counter logarithm factor and the counter decay time. It is important to
# understand what the two parameters mean before changing them.
#
# The LFU counter is just 8 bits per key, it's maximum value is 255, so Redis
# uses a probabilistic increment with logarithmic behavior. Given the value
# of the old counter, when a key is accessed, the counter is incremented in
# this way:
#
# 1. A random number R between 0 and 1 is extracted.
# 2. A probability P is calculated as 1/(old_value*lfu_log_factor+1).
# 3. The counter is incremented only if R < P.
#
# The default lfu-log-factor is 10. This is a table of how the frequency
# counter changes with a different number of accesses with different
# logarithmic factors:
#
# +--------+------------+------------+------------+------------+------------+
# | factor | 100 hits | 1000 hits | 100K hits | 1M hits | 10M hits |
# +--------+------------+------------+------------+------------+------------+
# | 0 | 104 | 255 | 255 | 255 | 255 |
# +--------+------------+------------+------------+------------+------------+
# | 1 | 18 | 49 | 255 | 255 | 255 |
# +--------+------------+------------+------------+------------+------------+
# | 10 | 10 | 18 | 142 | 255 | 255 |
# +--------+------------+------------+------------+------------+------------+
# | 100 | 8 | 11 | 49 | 143 | 255 |
# +--------+------------+------------+------------+------------+------------+
#
# NOTE: The above table was obtained by running the following commands:
#
# redis-benchmark -n 1000000 incr foo
# redis-cli object freq foo
#
# NOTE 2: The counter initial value is 5 in order to give new objects a chance
# to accumulate hits.
#
# The counter decay time is the time, in minutes, that must elapse in order
# for the key counter to be decremented.
#
# The default value for the lfu-decay-time is 1. A special value of 0 means we
# will never decay the counter.
#
# lfu-log-factor 10
# lfu-decay-time 1
# The maximum number of new client connections accepted per event-loop cycle. This configuration
# is set independently for TLS connections.
#
# By default, up to 10 new connection will be accepted per event-loop cycle for normal connections
# and up to 1 new connection per event-loop cycle for TLS connections.
#
# Adjusting this to a larger number can slightly improve efficiency for new connections
# at the risk of causing timeouts for regular commands on established connections. It is
# not advised to change this without ensuring that all clients have limited connection
# pools and exponential backoff in the case of command/connection timeouts.
#
# If your application is establishing a large number of new connections per second you should
# also consider tuning the value of tcp-backlog, which allows the kernel to buffer more
# pending connections before dropping or rejecting connections.
#
# max-new-connections-per-cycle 10
# max-new-tls-connections-per-cycle 1
########################### ACTIVE DEFRAGMENTATION #######################
#
# What is active defragmentation?
# -------------------------------
#
# Active (online) defragmentation allows a Redis server to compact the
# spaces left between small allocations and deallocations of data in memory,
# thus allowing to reclaim back memory.
#
# Fragmentation is a natural process that happens with every allocator (but
# less so with Jemalloc, fortunately) and certain workloads. Normally a server
# restart is needed in order to lower the fragmentation, or at least to flush
# away all the data and create it again. However thanks to this feature
# implemented by Oran Agra for Redis 4.0 this process can happen at runtime
# in a "hot" way, while the server is running.
#
# Basically when the fragmentation is over a certain level (see the
# configuration options below) Redis will start to create new copies of the
# values in contiguous memory regions by exploiting certain specific Jemalloc
# features (in order to understand if an allocation is causing fragmentation
# and to allocate it in a better place), and at the same time, will release the
# old copies of the data. This process, repeated incrementally for all the keys
# will cause the fragmentation to drop back to normal values.
#
# Important things to understand:
#
# 1. This feature is disabled by default, and only works if you compiled Redis
# to use the copy of Jemalloc we ship with the source code of Redis.
# This is the default with Linux builds.
#
# 2. You never need to enable this feature if you don't have fragmentation
# issues.
#
# 3. Once you experience fragmentation, you can enable this feature when
# needed with the command "CONFIG SET activedefrag yes".
#
# The configuration parameters are able to fine tune the behavior of the
# defragmentation process. If you are not sure about what they mean it is
# a good idea to leave the defaults untouched.
# Active defragmentation is disabled by default
# activedefrag no
# Minimum amount of fragmentation waste to start active defrag
# active-defrag-ignore-bytes 100mb
# Minimum percentage of fragmentation to start active defrag
# active-defrag-threshold-lower 10
# Maximum percentage of fragmentation at which we use maximum effort
# active-defrag-threshold-upper 100
# Minimal effort for defrag in CPU percentage, to be used when the lower
# threshold is reached
# active-defrag-cycle-min 1
# Maximal effort for defrag in CPU percentage, to be used when the upper
# threshold is reached
# active-defrag-cycle-max 25
# Maximum number of set/hash/zset/list fields that will be processed from
# the main dictionary scan
# active-defrag-max-scan-fields 1000
# Jemalloc background thread for purging will be enabled by default
jemalloc-bg-thread yes
# It is possible to pin different threads and processes of Redis to specific
# CPUs in your system, in order to maximize the performances of the server.
# This is useful both in order to pin different Redis threads in different
# CPUs, but also in order to make sure that multiple Redis instances running
# in the same host will be pinned to different CPUs.
#
# Normally you can do this using the "taskset" command, however it is also
# possible to this via Redis configuration directly, both in Linux and FreeBSD.
#
# You can pin the server/IO threads, bio threads, aof rewrite child process, and
# the bgsave child process. The syntax to specify the cpu list is the same as
# the taskset command:
#
# Set redis server/io threads to cpu affinity 0,2,4,6:
# server-cpulist 0-7:2
#
# Set bio threads to cpu affinity 1,3:
# bio-cpulist 1,3
#
# Set aof rewrite child process to cpu affinity 8,9,10,11:
# aof-rewrite-cpulist 8-11
#
# Set bgsave child process to cpu affinity 1,10,11
# bgsave-cpulist 1,10-11
# In some cases redis will emit warnings and even refuse to start if it detects
# that the system is in bad state, it is possible to suppress these warnings
# by setting the following config which takes a space delimited list of warnings
# to suppress
#
# ignore-warnings ARM64-COW-BUG
sudo systemctl restart redis-server
Varnish
/etc/varnish/default.vcl
default.vcl
vcl 4.0;
import std;
backend default {
.host = "127.0.0.1";
.port = "8080";
.first_byte_timeout = 600s;
}
acl purger {
"localhost";
"127.0.0.1";
"172.17.0.1";
}
sub vcl_recv {
if (req.restarts > 0) {
set req.hash_always_miss = true;
}
#return (pass);
if (req.method == "PURGE") {
if (client.ip !~ purger) {
return (synth(405, "Method not allowed"));
}
if (req.http.X-Cache-Tags) {
ban("obj.http.X-Cache-Tags ~ " + req.http.X-Cache-Tags);
} else {
ban("req.http.host == " +req.http.host+" && req.url ~ "+req.url);
return (synth(200, "Purged"));
}
return (synth(200, "Purged"));
}
if (req.method != "GET" &&
req.method != "HEAD" &&
req.method != "PUT" &&
req.method != "POST" &&
req.method != "TRACE" &&
req.method != "OPTIONS" &&
req.method != "DELETE") {
/* Non-RFC2616 or CONNECT which is weird. */
return (pipe);
}
# We only deal with GET and HEAD by default
if (req.method != "GET" && req.method != "HEAD") {
return (pass);
}
# Set initial grace period usage status
set req.http.grace = "none";
# normalize url in case of leading HTTP scheme and domain
set req.url = regsub(req.url, "^http[s]?://", "");
# collect all cookies
std.collect(req.http.Cookie);
if (req.url ~ "^/admin/" || req.url ~ "/paypal/") {
return (pass);
}
if (req.http.cookie ~ "wordpress_logged_in_") {
return (pass);
}
if (req.http.Accept-Encoding) {
if (req.url ~ "\.(jpg|jpeg|png|gif|gz|tgz|bz2|tbz|mp3|ogg|swf|flv)$") {
# No point in compressing these
unset req.http.Accept-Encoding;
} elsif (req.http.Accept-Encoding ~ "gzip") {
set req.http.Accept-Encoding = "gzip";
} elsif (req.http.Accept-Encoding ~ "deflate" && req.http.user-agent !~ "MSIE") {
set req.http.Accept-Encoding = "deflate";
} else {
# unknown algorithm
unset req.http.Accept-Encoding;
}
}
if (req.url ~ "(\?|&)(gclid|cx|ie|cof|siteurl|zanpid|origin|fbclid|mc_[a-z]+|utm_[a-z]+|_bta_[a-z]+)=") {
set req.url = regsuball(req.url, "(gclid|cx|ie|cof|siteurl|zanpid|origin|fbclid|mc_[a-z]+|utm_[a-z]+|_bta_[a-z]+)=[-_A-z0-9+()%.]+&?", "");
set req.url = regsub(req.url, "[?|&]+$", "");
}
if (req.http.Authorization ~ "^Bearer") {
return (pass);
}
return (hash);
}
sub vcl_hash {
if (req.http.host) {
hash_data(req.http.host);
} else {
hash_data(server.ip);
}
}
sub vcl_backend_response {
set beresp.grace = 3d;
if (beresp.http.content-type ~ "text") {
set beresp.do_esi = true;
}
if (beresp.http.content-type ~ "text") {
set beresp.do_gzip = true;
}
# cache only successfully responses and 404s that are not marked as private
if (beresp.status != 200 && beresp.status != 404 && beresp.http.Cache-Control ~ "private") {
set beresp.uncacheable = true;
set beresp.ttl = 86400s;
return (deliver);
}
# validate if we need to cache it and prevent from setting cookie
if (beresp.ttl > 0s && (bereq.method == "GET" || bereq.method == "HEAD")) {
unset beresp.http.set-cookie;
}
if (!beresp.http.cache-control) {
set beresp.ttl = 0s;
set beresp.uncacheable = true;
}
return (deliver);
}
sub vcl_deliver {
set resp.http.X-Cache-Age = resp.http.Age;
unset resp.http.Age;
# Avoid being cached by the browser.
if (resp.http.Cache-Control !~ "private") {
set resp.http.Pragma = "no-cache";
set resp.http.Expires = "-1";
set resp.http.Cache-Control = "no-store, no-cache, must-revalidate, max-age=0";
}
unset resp.http.X-Powered-By;
unset resp.http.Server;
unset resp.http.X-Varnish;
unset resp.http.Via;
unset resp.http.Link;
unset resp.http.X-Frame-Options;
unset resp.http.X-Content-Type-Options;
unset resp.http.X-Xss-Protection;
unset resp.http.Referer-Policy;
unset resp.http.X-Permitted-cross-domain-policies;
}
sub vcl_hit {
if (obj.ttl >= 0s) {
return (deliver);
}
set req.http.grace = "unlimited (unhealthy server)";
return (deliver);
}
varnishd -V
varnishreload
systemctl restart varnish
systemctl daemon-reload
Fail2ban
/etc/fail2ban/jail.d/defaults-debian.conf
defaults-debian.conf
[DEFAULT]
banaction = nftables
banaction_allports = nftables[type=allports]
[sshd]
backend = systemd
journalmatch = _SYSTEMD_UNIT=ssh.service + _COMM=sshd
enabled = true
sudo fail2ban-client reload
sudo systemctl restart fail2ban
sudo fail2ban-client status