Module Index

Below is a list of all of the modules that come as part of the Apache HTTP Server distribution. See also the complete alphabetical list of all Apache HTTP Server directives.

Core Features and Multi-Processing Modules

core: Core Apache HTTP Server features that are always available
mpm_common: A collection of directives that are implemented by more than one multi-processing module (MPM)
event: A variant of the worker MPM with the goal of consuming threads only for connections with active processing
mpm_netware: Multi-Processing Module implementing an exclusively threaded web server optimized for Novell NetWare
mpmt_os2: Hybrid multi-process, multi-threaded MPM for OS/2
prefork: Implements a non-threaded, pre-forking web server
mpm_winnt: Multi-Processing Module optimized for Windows NT.
worker: Multi-Processing Module implementing a hybrid multi-threaded multi-process web server

Other Modules

A | B | C | D | E | F | H | I | J | L | M | N | P | R | S | T | U | V | W | X

mod_access_compat: Group authorizations based on host (name or IP address)
mod_actions: Execute CGI scripts based on media type or request method.
mod_alias: Provides for mapping different parts of the host filesystem in the document tree and for URL redirection
mod_allowhandlers: Easily restrict what HTTP handlers can be used on the server
mod_allowmethods: Easily restrict what HTTP methods can be used on the server
mod_asis: Sends files that contain their own HTTP headers
mod_auth_basic: Basic HTTP authentication
mod_auth_digest: User authentication using MD5 Digest Authentication
mod_auth_form: Form authentication
mod_authn_anon: Allows "anonymous" user access to authenticated areas
mod_authn_core: Core Authentication
mod_authn_dbd: User authentication using an SQL database
mod_authn_dbm: User authentication using DBM files
mod_authn_file: User authentication using text files
mod_authn_socache: Manages a cache of authentication credentials to relieve the load on backends
mod_authnz_fcgi: Allows a FastCGI authorizer application to handle Apache httpd authentication and authorization
mod_authnz_ldap: Allows an LDAP directory to be used to store the database for HTTP Basic authentication.
mod_authz_core: Core Authorization
mod_authz_dbd: Group Authorization and Login using SQL
mod_authz_dbm: Group authorization using DBM files
mod_authz_groupfile: Group authorization using plaintext files
mod_authz_host: Group authorizations based on host (name or IP address)
mod_authz_owner: Authorization based on file ownership
mod_authz_user: User Authorization
mod_autoindex: Generates directory indexes, automatically, similar to the Unix ls command or the Win32 dir shell command
mod_brotli: Compress content via Brotli before it is delivered to the client
mod_buffer: Support for request buffering
mod_cache: RFC 2616 compliant HTTP caching filter.
mod_cache_disk: Disk based storage module for the HTTP caching filter.
mod_cache_socache: Shared object cache (socache) based storage module for the HTTP caching filter.
mod_cern_meta: CERN httpd metafile semantics
mod_cgi: Execution of CGI scripts
mod_cgid: Execution of CGI scripts using an external CGI daemon
mod_charset_lite: Specify character set translation or recoding
mod_crypto: Support for symmetrical encryption and decryption
mod_data: Convert response body into an RFC2397 data URL
mod_dav: Distributed Authoring and Versioning (WebDAV) functionality
mod_dav_fs: Filesystem provider for mod_dav
mod_dav_lock: Generic locking module for mod_dav
mod_dbd: Manages SQL database connections
mod_deflate: Compress content before it is delivered to the client
mod_dialup: Send static content at a bandwidth rate limit, defined by the various old modem standards
mod_dir: Provides for "trailing slash" redirects and serving directory index files
mod_dumpio: Dumps all I/O to error log as desired.
mod_echo: A simple echo server to illustrate protocol modules
mod_env: Modifies the environment which is passed to CGI scripts and SSI pages
mod_example_hooks: Illustrates the Apache module API
mod_expires: Generation of Expires and Cache-Control HTTP headers according to user-specified criteria
mod_ext_filter: Pass the response body through an external program before delivery to the client
mod_file_cache: Caches a static list of files in memory
mod_filter: Context-sensitive smart filter configuration module
mod_firehose: Multiplexes all I/O to a given file or pipe.
mod_headers: Customization of HTTP request and response headers
mod_heartbeat: Sends messages with server status to frontend proxy
mod_heartmonitor: Centralized monitor for mod_heartbeat origin servers
mod_http2: Support for the HTTP/2 transport layer
mod_ident: RFC 1413 ident lookups
mod_imagemap: Server-side imagemap processing
mod_include: Server-parsed html documents (Server Side Includes)
mod_info: Provides a comprehensive overview of the server configuration
mod_isapi: ISAPI Extensions within Apache for Windows
mod_journald: Provides "journald" ErrorLog provider
mod_lbmethod_bybusyness: Pending Request Counting load balancer scheduler algorithm for mod_proxy_balancer
mod_lbmethod_byrequests: Request Counting load balancer scheduler algorithm for mod_proxy_balancer
mod_lbmethod_bytraffic: Weighted Traffic Counting load balancer scheduler algorithm for mod_proxy_balancer
mod_lbmethod_heartbeat: Heartbeat Traffic Counting load balancer scheduler algorithm for mod_proxy_balancer
mod_ldap: LDAP connection pooling and result caching services for use by other LDAP modules
mod_log_config: Logging of the requests made to the server
mod_log_debug: Additional configurable debug logging
mod_log_forensic: Forensic Logging of the requests made to the server
mod_logio: Logging of input and output bytes per request
mod_lua: Provides Lua hooks into various portions of the httpd request processing
mod_macro: Provides macros within apache httpd runtime configuration files
mod_md: Managing domains across virtual hosts, certificate provisioning via the ACME protocol
mod_mime: Associates the requested filename's extensions with the file's behavior (handlers and filters) and content (mime-type, language, character set and encoding)
mod_mime_magic: Determines the MIME type of a file by looking at a few bytes of its contents
mod_negotiation: Provides for content negotiation
mod_nw_ssl: Enable SSL encryption for NetWare
mod_policy: HTTP protocol compliance enforcement.
mod_privileges: Support for Solaris privileges and for running virtual hosts under different user IDs.
mod_proxy: Multi-protocol proxy/gateway server
mod_proxy_ajp: AJP support module for mod_proxy
mod_proxy_balancer: mod_proxy extension for load balancing
mod_proxy_connect: mod_proxy extension for CONNECT request handling
mod_proxy_express: Dynamic mass reverse proxy extension for mod_proxy
mod_proxy_fcgi: FastCGI support module for mod_proxy
mod_proxy_fdpass: fdpass external process support module for mod_proxy
mod_proxy_ftp: FTP support module for mod_proxy
mod_proxy_hcheck: Dynamic health check of Balancer members (workers) for mod_proxy
mod_proxy_html: Rewrite HTML links in to ensure they are addressable from Clients' networks in a proxy context.
mod_proxy_http: HTTP support module for mod_proxy
mod_proxy_http2: HTTP/2 support module for mod_proxy
mod_proxy_scgi: SCGI gateway module for mod_proxy
mod_proxy_uwsgi: UWSGI gateway module for mod_proxy
mod_proxy_wstunnel: Websockets support module for mod_proxy
mod_ratelimit: Bandwidth Rate Limiting for Clients
mod_reflector: Reflect a request body as a response via the output filter stack.
mod_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.
mod_reqtimeout: Set timeout and minimum data rate for receiving requests
mod_request: Filters to handle and make available HTTP request bodies
mod_rewrite: Provides a rule-based rewriting engine to rewrite requested URLs on the fly
mod_sed: Filter Input (request) and Output (response) content using sed syntax
mod_session: Session support
mod_session_cookie: Cookie based session support
mod_session_crypto: Session encryption support
mod_session_dbd: DBD/SQL based session support
mod_setenvif: Allows the setting of environment variables based on characteristics of the request
mod_slotmem_plain: Slot-based shared memory provider.
mod_slotmem_shm: Slot-based shared memory provider.
mod_so: Loading of executable code and modules into the server at start-up or restart time
mod_socache_dbm: DBM based shared object cache provider.
mod_socache_dc: Distcache based shared object cache provider.
mod_socache_memcache: Memcache based shared object cache provider.
mod_socache_redis: Redis based shared object cache provider.
mod_socache_shmcb: shmcb based shared object cache provider.
mod_speling: Attempts to correct mistaken URLs by ignoring capitalization, or attempting to correct various minor misspellings.
mod_ssl: Strong cryptography using the Secure Sockets Layer (SSL) and Transport Layer Security (TLS) protocols
mod_ssl_ct: Implementation of Certificate Transparency (RFC 6962)
mod_status: Provides information on server activity and performance
mod_substitute: Perform search and replace operations on response bodies
mod_suexec: Allows CGI scripts to run as a specified user and Group
mod_syslog: Provides "syslog" ErrorLog provider
mod_systemd: Provides better support for systemd integration
mod_tls: TLS v1.2 and v1.3 implemented in memory-safe Rust via the rustls library
mod_unique_id: Provides an environment variable with a unique identifier for each request
mod_unixd: Basic (required) security for Unix-family platforms.
mod_userdir: User-specific directories
mod_usertrack: Clickstream logging of user activity on a site
mod_version: Version dependent configuration
mod_vhost_alias: Provides for dynamically configured mass virtual hosting
mod_watchdog: provides infrastructure for other modules to periodically run tasks
mod_xml2enc: Enhanced charset/internationalisation support for libxml2-based filter modules