Web server

The term web server can mean one of two things:

1. a computer responsible for serving web pages, mostly HTML documents, via the HTTP protocol to clients, mostly web browsers;
2. a software program that is working as a daemon serving web documents.

Every web server (sense 1) is running a web server program (sense 2).

The most common web or HTTP server programs are:

• Apache HTTP Server from the Apache Software Foundation
• Internet Information Server (IIS) from Microsoft
• Caudium (formerly Roxen)
• AOLserver from America Online
• thttpd from
• Zeus Web Server from
• Sun ONE from Sun Microsystems (formerly Netscape's iPlanet nee Enterprise)
• iPlanet from Netscape Communications Corporation
• Stronghold from Red Hat
• Microsoft Windows PWS
• BEA Weblogic
• 2004, is available from the Apache Software Foundation.

Other HTTP servers include:

• NCSA HTTPd from NCSA (historically-notable software)
• Xitami from
• Quid Pro Quo from Social Engineering Inc.
• Virtual hosting