Apache HTTP Server

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Apache HTTP Server is an open source HTTP web server for Unix-like systems (BSD, Linux, and UNIX systems), Microsoft Windows, and other platforms.

Apache features highly configurable error messages, DBMS-based 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] (http://gui.apache.org/).

The Apache HTTP Server is developed and maintained by an open community of developers under the auspices of the Apache Software Foundation.

Contents

History

Initially, Apache was the only viable open source alternative to the Netscape web server (currently known as Sun ONE). It has since evolved to rival (and probably surpass) any other Unix based HTTP server in terms of functionality and speed. 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 2004 this percentage had increased to 67%.

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 (Ind), well-known for their superior skills in warfare strategy and their inexhaustible endurance". It has since been rewritten from scratch and Apache 2.x does not contain any NCSA code.

However, sources involved in the early development state that the name was chosen as a result of the constant "bug" patching that had to be done to the NCSA code that was used to develop the server. It was called "a patchy server" but was eventually just called an "apache server". Contrary to what is stated in another well-known web dictionary, this is not a common misunderstanding, but is, in fact true.

Usage

Apache is the web server component of the popular web server application stack called LAMP (Linux, Apache, MySQL, PHP/Perl).

Apache is redistributed as part of various proprietary packages, e.g., the Oracle database or the IBM WebSphere application server. It is also supported in some way by Borland in the Kylix and Delphi development tools.

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, 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

Microsoft's Internet Information Services (IIS) is the main competitor to Apache - Apache is the more widely used server. Solaris Operating Environment/J2EE also competes in the enterprise web services arena.

External links

This article was originally based on material from the Free On-line Dictionary of Computing, which is licensed under the GFDL.
cs:Apache

da:Apache (webserver) de:Apache HTTP Server es:Servidor HTTP Apache fr:Apache HTTP Server it:Apache (informatica) nl:Apache (webserver) ja:Apache pl:Apache (serwer) ru:Apache HTTP Сервер fi:Apache sv:Apache HTTP Server zh:Apache

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