Apache is a powerful, flexible, HTTP/1.1 compliant web server. It implements the latest protocols, including HTTP/1.1 (RFC2616). Also, it is highly configurable and estensible with third-party modules. And, it can be customised by writing 'modules' using te Apache module API. It probides full source code and comes with unrestrictive license. It's actively being developed. Also, it encourages user feedback through new ideas, bug reports and patches. It implements many frequently requested features, including; DBMS databases for authentication, customized responses to errors and problems, multiple directory indes directives, unlimited flexible URL rewriting and aliasing, content negotiation, virtual hosts, and configurable reliable piped logs!