TABLE 1: Sample Apache 2.0 Modules
Module	Purpose
mod_cgi	Provides support for CGI scripts, which are the backbone of many Web sites. Apache also supports mod_perl, which loads the Perl interpreter into memory and can drastically reduce CGI execution time.
mod_dav	Implements the WWW Distributed Authoring and Versioning (WebDAV) specification, a set of HTTP extensions that let remote users collaboratively edit and manage files on a Web server.
mod_php4	Provides support for the PHP4 server-side programming language. PHP is similar to ASP in that it lets programmers embed directly into HTML documents programming code to be executed on the server.
mod_rewrite	Permits dynamic rewriting of URLs to redirect access to files or authentication scripts, to reroute users to other sites, and more. One of the most powerful yet underused modules.
mod_ssl	Provides an interface to the SSL encryption protocols that OpenSSL provides.