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# Copyright 2007-2023 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2

# This file contains descriptions of APACHE2_MODULES USE_EXPAND flags.

# Keep it sorted.
access_compat - Group authorizations based on host (name or IP address). Available as a compatibility module with previous versions
actions - Provides for executing CGI scripts based on media type or request method
alias - Provides for mapping different parts of the host filesystem in the document tree and for URL redirection
allowmethods - This module makes it easy to restrict what HTTP methods can be used on a server
asis - Sends files that contain their own HTTP headers
auth_basic - Basic authentication
auth_digest - User authentication using MD5 Digest Authentication
auth_form - Allows the use of an HTML login form to restrict access by looking up users in the given providers
authn_anon - Allows "anonymous" user access to authenticated areas
authn_core - Provides core authentication capabilities common to all authentication providers (functionality provided by authn_alias in previous versions)
authn_dbd - User authentication using an SQL database
authn_dbm - User authentication using DBM files
authn_file - User authentication using text files
authn_socache - Maintains a cache of authentication credentials, so that a new backend lookup is not required for every authenticated request
authz_core - Provides core authorization capabilities to various authorization/authorization modules, such as authn_file and authz_user
authz_dbd - Provides authorization capabilities via SQL database so that authenticated users can be allowed or denied access to portions of the web site by group membership
authz_dbm - Group authorization using DBM files
authz_groupfile - Group authorization using plaintext files
authz_host - Group authorizations based on host (name or IP address)
authz_owner - Authorization based on file ownership
authz_user - User Authorization
autoindex - Generates directory indexes, automatically, similar to the Unix ls command
brotli - Enable brotli compression support
cache - Content cache keyed to URIs
cache_disk - Disk based storage module for the HTTP caching filter (similar to mem_cache in previous versions)
cache_socache - Shared object cache (socache) based storage module for the HTTP caching filter
cern_meta - CERN httpd metafile semantics
cgi - Enable CGI module (used by non-multithreaded MPMs, for eg. prefork)
cgid - Enable CGI module (used by multithreaded MPMs, for eg. worker)
charset_lite - Specify character set translation or recoding
dav - Distributed Authoring and Versioning (WebDAV) functionality
dav_fs - filesystem provider for mod_dav
dav_lock - generic locking module for mod_dav
dbd - Manages SQL database connections
deflate - Compress content before it is delivered to the client
dir - Provides for "trailing slash" redirects and serving directory index files
dumpio - Dumps all I/O to error log as desired
env - Modifies the environment which is passed to CGI scripts and SSI pages
expires - Generation of Expires and Cache-Control HTTP headers according to user-specified criteria
ext_filter - Pass the response body through an external program before delivery to the client
file_cache - Caches a static list of files in memory
filter - Context-sensitive smart filter configuration module
headers - Customization of HTTP request and response headers
http2 - Enable http2/alpn module
ident - RFC 1413 ident lookups
imagemap - Server-side imagemap processing
include - Server-parsed html documents (Server Side Includes)
info - Provides a comprehensive overview of the server configuration
lbmethod_bybusyness - Pending Request Counting load balancer scheduler algorithm for mod_proxy_balancer
lbmethod_byrequests - Request Counting load balancer scheduler algorithm for mod_proxy_balancer
lbmethod_bytraffic - Weighted Traffic Counting load balancer scheduler algorithm for mod_proxy_balancer
lbmethod_heartbeat - Heartbeat Traffic Counting load balancer scheduler algorithm for mod_proxy_balancer
log_config - Logging of the requests made to the server
log_forensic - Forensic Logging of the requests made to the server
logio - Logging of input and output bytes per request
lua - Provides Lua hooks into various portions of the httpd request processing
macro - Macros for the Apache config file
md - Managing domains across virtual hosts, certificate provisioning via the ACME protocol
mime - Associates the requested filename's extensions with the file's behavior (handlers and filters) and content (mime-type, language, character set and encoding)
mime_magic - Determines the MIME type of a file by looking at a few bytes of its contents
negotiation - Provides for content negotiation
proxy - HTTP/1.1 proxy/gateway server
proxy_ajp - AJP support module for mod_proxy
proxy_balancer - mod_proxy extension for load balancing
proxy_connect - mod_proxy extension for CONNECT request handling
proxy_fcgi - FastCGI support module for mod_proxy
proxy_ftp - FTP support module for mod_proxy
proxy_hcheck - Dynamic health check of Balancer members (workers) for mod_proxy
proxy_html - Module to rewrite links in html pages behind a reverse proxy
proxy_http - HTTP support module for mod_proxy
proxy_http2 - HTTP2 support module for mod_proxy
proxy_scgi - SCGI gateway module for mod_proxy
proxy_uwsgi - UWSGI gateway module for mod_proxy
proxy_wstunnel - Provides support for the tunnelling of web socket connections to a backend websockets server
ratelimit - Bandwidth Rate Limiting for Clients
remoteip - Replaces the original client IP address for the connection with the useragent IP address list presented by a proxies or a load balancer via the request headers
reqtimeout - Set timeout and minimum data rate for receiving requests
rewrite - Provides a rule-based rewriting engine to rewrite requested URLs on the fly
session - Provides support for a server wide per user session interface
session_crypto - Provides support for the encryption of user sessions before being written to a local database, or written to a remote browser via an HTTP cookie
session_cookie - Provides support for the storage of user sessions on the remote browser within HTTP cookies
session_dbd - Provides support for the storage of user sessions within a SQL database using the mod_dbd module
setenvif - Allows the setting of environment variables based on characteristics of the request
slotmem_shm - Slot-based shared memory provider
socache_memcache - A shared object cache provider using memcached
socache_shmcb - A shared object cache provider using a high-performance cyclic buffer inside a shared memory segment
speling - Attempts to correct mistaken URLs that users might have entered by ignoring capitalization and by allowing up to one misspelling
status - Provides information on server activity and performance
substitute - Perform search and replace operations on response bodies
tls - mod_tls TLS module for Apache, intended to replace mod_ssl
unique_id - Provides an environment variable with a unique identifier for each request
unixd - Basic (required) security for Unix-family platforms
userdir - User-specific directories
usertrack - Clickstream logging of user activity on a site
version - Version dependent configuration
vhost_alias - Provides for dynamically configured mass virtual hosting
watchdog - Provides infrastructure for other modules to periodically run tasks
xml2enc - Enable xml2 encoding module