mod_env
Controls the environment that is passed to CGI scripts or SSI pages. Environment
variables can be set or unset or passed from the shell that invoked the httpd process.
This module is enabled by default.
mod_expires
With mod_expires, you can control how often proxy and browser caches refresh
your documents by sending an Expires header. This module is enabled by default.
mod_include
mod_include lets you use Server Side Includes (SSI), which provide a basic func-
tionality to generate HTML pages dynamically. This module is enabled by default.
mod_info
Provides a comprehensive overview of the server conguration under http://local-
host/server-info/. For security reasons, you should always limit access to this URL.
By default only localhost is allowed to access this URL. mod_info is congured
at /etc/apache2/mod_info.conf.
mod_log_cong
With this module, you can congure the look of the Apache log les. This module
is enabled by default.
mod_mime
The mime module makes certain that a le is delivered with the correct MIME
header based on the lename's extension (for example text/html for HTML
documents). This module is enabled by default.
mod_negotiation
Necessary for content negotiation. See http://httpd.apache.org/docs/
2.2/content-negotiation.html for more information. This module is
enabled by default.
mod_rewrite
Provides the functionality of mod_alias, but offers more features and exibility.
With mod_rewrite, you can redirect URLs based on multiple rules, request headers,
and more.
466 Reference
