Apache HTTP Server is a web server for Unix platforms (BSD, Linux, and UNIX systems), Microsoft Windows, and other platforms.
5/5 rating by My Open Source
Apache features highly configurable error messages, DBMS-based authentication databases, and content negotiation. It is also supported by several GUIs which permit easier, more intuitive configuration of the server.
Apache has other powerful features included in a large set of modules, including mod_perl, many authentication modules (mod_access, mod_auth, mod_digest to name a few) as well as a web proxy module and an extremely useful URL rewriter (also known as a rewrite engine) called mod_rewrite. Apache logs can be analysed through a web browser using free scripts such as AWStats.
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