Web server

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.

The most common HTTP servers are:

• Apache HTTP Server from the Apache Software Foundation
• Internet Information Server (IIS) from Microsoft
• Caudium[?] (formerly Roxen)
• AOLserver from America Online
• thttpd[?] from ACME Laboratories (http://www.acme.com/)
• Zeus Web Server[?] from Zeus Technology (http://www.zeus.com/)
• Sun ONE[?] from Sun Microsystems (formerly Netscape's iPlanet nee Enterprise)
• WebSTAR[?] from 4D, Inc. (http://www.4d.com/)
• Stronghold[?] from Red Hat
• NCSA HTTPd[?]
• Microsoft Windows PWS

The most commonly-used web server, Apache, with over 60% of market share as of March 2003, is available from the Apache Software Foundation.

You can find the current web servers statistics from the Netcraft Web Server Survey (http://www.netcraft.com/survey/).