| Module | Description |
| mod_authn_file | User authentication using text files |
| mod_authn_dbm | User authentication using DBM files |
| mod_authn_anon | Allows "anonymous" user access to authenticated areas |
| mod_authn_dbd | User authentication using an SQL database |
| mod_authn_default | Authentication fallback module |
| mod_authz_host | Group authorizations based on host (name or IP address) |
| mod_authz_groupfile | Group authorization using plaintext files |
| mod_authz_user | User Authorization |
| mod_authz_dbm | Group authorization using DBM files |
| mod_authz_owner | Authorization based on file ownership |
| mod_authz_default | Authorization fallback module |
| mod_auth_basic | Basic authentication |
| mod_auth_digest | User authentication using MD5 Digest Authentication. |
| mod_dbd | Manages SQL database connections |
| mod_dumpio | Dumps all I/O to error log as desired. |
| mod_ext_filter | Pass the response body through an external program before delivery to the client |
| mod_include | Server-parsed html documents (Server Side Includes) |
| mod_filter | Context-sensitive smart filter configuration module |
| mod_deflate | Compress content before it is delivered to the client |
| mod_log_config | Logging of the requests made to the server |
| mod_log_forensic | Forensic Logging of the requests made to the server |
| mod_logio | Logging of input and output bytes per request |
| mod_env | Modifies the environment which is passed to CGI scripts and SSI pages |
| 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_cern_meta | CERN httpd metafile semantics |
| mod_expires | Generation of Expires and Cache-Control HTTP headers according to user-specified criteria |
| mod_headers | Customization of HTTP request and response headers |
| mod_ident | RFC 1413 ident lookups |
| mod_usertrack | Clickstream logging of user activity on a site |
| mod_unique_id | Provides an environment variable with a unique identifier for each request |
| mod_setenvif | Allows the setting of environment variables based on characteristics of the request |
| mod_version | Version dependent configuration |
| mod_proxy | HTTP/1.1 proxy/gateway server |
| mod_proxy_connect | mod_proxy extension for CONNECT request handling |
| mod_proxy_ftp | FTP support module for mod_proxy |
| mod_proxy_http | HTTP support module for mod_proxy |
| mod_proxy_ajp | AJP support module for mod_proxy |
| mod_proxy_balancer | mod_proxy extension for load balancing |
| mod_ssl | Strong cryptography using the Secure Sockets Layer (SSL) and Transport Layer Security (TLS) protocols. More details can be seen at http://httpd.apache.org/docs/2.2/ssl/ |
| 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_dav | Distributed Authoring and Versioning (WebDAV) functionality |
| mod_status | Provides information on server activity and performance |
| mod_autoindex | Generates directory indexes, automatically, similar to the Unix ls command or the Win32 dir shell command |
| mod_asis | Sends files that contain their own HTTP headers |
| mod_info | Provides a comprehensive overview of the server configuration |
| mod_actions | This module provides for executing CGI scripts based on media type or request method. |
| mod_dav_fs | filesystem provider for mod_dav |
| mod_vhost_alias | Provides for dynamically configured mass virtual hosting |
| mod_negotiation | Provides for content negotiation |
| mod_dir | Provides for "trailing slash" redirects and serving directory index files |
| mod_imagemap | Server-side imagemap processing |
| mod_actions | This module provides for executing CGI scripts based on media type or request method. |
| mod_speling | Attempts to correct mistaken URLs that users might have entered by ignoring capitalization and by allowing up to one misspelling |
| mod_userdir | User-specific directories |
| mod_alias | Provides for mapping different parts of the host filesystem in the document tree and for URL redirection |
| mod_rewrite | Provides a rule-based rewriting engine to rewrite requested URLs on the fly |