Apache HTTP Server
Apache HTTP Server The Apache HTTP Server, colloquially called Apache sive and kick some ass.” (/əˈpætʃiː/ ə-PA-chee), is the world’s most used web server software. Originally based on the NCSA HTTPd When Apache is running, its process name is sometimes server, development of Apache began in early 1995 af- httpd, which is short for “HTTP daemon.” ter work on the NCSA code stalled. Apache played a key role in the initial growth of the World Wide Web,[4] quickly overtaking NCSA HTTPd as the dominant HTTP server, and has remained most popular since April 1996. 2 Feature overview In 2009, it became the first web server software to serve more than 100 million websites.[5] Apache supports a variety of features, many implemented Apache is developed and maintained by an open com- as compiled modules which extend the core functional- munity of developers under the auspices of the Apache ity. These can range from server-side programming lan- Software Foundation. Most commonly used on a Unix- guage support to authentication schemes. Some common [6] like system (usually Linux), the software is available language interfaces support Perl, Python, Tcl, and PHP. for a wide variety of operating systems besides Unix, Popular authentication modules include mod_access, including eComStation, Microsoft Windows, NetWare, mod_auth, mod_digest, and mod_auth_digest, the suc- OpenVMS, OS/2, and TPF. Released under the Apache cessor to mod_digest. A sample of other features in- License, Apache is free and open-source software. clude Secure Sockets Layer and Transport Layer Secu- As of November 2015, Apache was estimated to serve rity support (mod_ssl), a proxy module (mod_proxy), a 50% of all active websites and 37% of the top servers URL rewriting module (mod_rewrite), custom log files across all domains.[7] (mod_log_config), and filtering support (mod_include and mod_ext_filter).
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