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Apache HTTP Server is an open source HTTP web server for Unixike systems (BSD, Linux, and UNIX systems), Microsoft Windows, Novell Netware and other platforms.
Apache features highly configurable error messages, DBMSased authentication databases, and content negotiation. It is also supported by several graphical user interfaces (GUIs) which permit easier, more intuitive configuration of the server 1.
The Apache HTTP Server is developed and maintained by an open community of developers under the auspices of the Apache Software Foundation.
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History
Initially, Apache was the only viable open source alternative to the Netscape web server (currently known as Sun Java System Web Server). It has since evolved to rival other Unix-based HTTP servers in terms of functionality and performance. Since April 1996 Apache has been the most popular HTTP server on the Internet: in May 1999 it was running on 57% of all web servers; by August 2005 this percentage had increased to 69% (Netcraft Web Server Survey, August 2005).
The author claims the name was initially chosen as a catchy name in order to be original, but the most widespread interpretation (which almost immediately surfaced) is that the name comes from the fact that when it was developed in early 1995, it consisted of changes in the code to the most popular HTTP server of the time, NCSA HTTPd 1.3 and was therefore "a patchy" server. However, in the FAQ on the server's official site, it is stated: "The name 'Apache' was chosen from respect for the Native American Indian tribe of Apache (Indé), well-known for their superior skills in warfare strategy and their inexhaustible endurance". Regardless, version 2 of the Apache server was written from scratch and contains no code from NCSA.
Usage
Apache is the web server component of the popular web server application stack called LAMP (Linux, Apache, MySQL, PHP/Perl/Python).
Apache is redistributed as part of various proprietary packages, e.g., the Oracle database or the IBM WebSphere application server. Mac OS X integrates Apache as its built-in web server. It is also supported in some way by Borland in the Kylix and Delphi development tools. Apache is included with Novell Netware 6.5, where it is the default web server.
Features
Apache supports a variety of features, many implemented as compiled modules. These can range from server-side programming language support to authentication schemes. Some common language interfaces support Perl, Python, Tcl, and PHP. Popular authentication modules include mod_access, mod_auth, and mod_digest. A sample of other features include SSL and TLS support (mod_ssl), a proxy module, a useful URL rewriter (also known as a rewrite engine, implemented under mod_rewrite), custom log files (mod_log_config), and filtering support (mod_include and mod_ext_filter). Apache logs can be analysed through a web browser using free scripts such as AWStats or Visitors.
Version 2.x
The Apache 2.x core has several major enhancements over Apache 1.x. These include UNIX threading, better support for non-Unix platforms (such as Windows), a new Apache API, and IPv6 support.
Competitors
According to statistics from the firm Netcraft, Apache is the most widely deployed web server in the world as of 2005 2. Microsoft's Internet Information Services (IIS) is the main competitor to Apache, trailed by Sun Microsystem's Sun Java Web Server (formerly Sun ONE) and a host of other applications such as Zeus.
See also
- Stronghold (software), commercial version distributed by Red Hat
External links
- Apache official website
- New Features in Apache 2.0
- New Features in Apache 2.2
- SVN trunk of Apache 2.x
- Apache GUIs
- Netcraft Uptime Survey, a service tracking uptime of web servers
- Apache DevCenter
- Apache Week
- Apache News Online
- Links at Open Directory Project
- Accelerating Apache Project
- URL Rewriting with mod_rewrite - using one of Apache's modules to redirect requests.
- How to mod_rewrite site powered by php script article from Mod_Rewrite Tutorials
- Chrooting Apache by Mike Peters
- This article was originally based on material from the Free On-line Dictionary of Computing, which is licensed under the GFDL.