# Copyright 2007-2022 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 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_alias - Provides the ability to create extended authentication providers based on actual 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_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 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