What is Web Server?

A Web Server is a computer (machine) where a web site is hosted.
The major function of a web server is to deliver web pages to clients. The Web Server program (software) performs the task to serve the web pages from local server machine to client machine’s browser.

On other sense a Web Server is a computer running with particular software. In details the Web Servers are powerful computers that have extremely large hard drives, or an array of hard drives running with required software.

The web server runs the Hypertext Transfer Protocol which is a set of rules for two computers to communicate each other. For this reason a Web Server is also called as HTTP Server.


List of Popular Web Server Software:

  1. Apache Web Server
Status: The most popular HTTP Web Server. Around 60% web server machine run Apache.   
Authorization: Open source i.e. Freeware
OS Support: Windows, Linux, UNIX, FreeBSD, Mac OS X

  1. Apache Tomcat
Status: Apache Tomcat is a software implementation of JavaServerlet and JavaServer Pages technologies.
Authorization: Open source i.e. Freeware
OS Support: Windows, Linux, UNIX, FreeBSD, Mac OS X

  1. IIS
Status: Internet Information Service is the second most popular Web Server.
Authorization: Copyright by Microsoft; Shareware
OS Support: Windows (NT 3.51, NT 4.0,200,XP, Vista,7,Server 2000,Server 2003,Server 2008, Server 2008R2)

  1. Jigsaw
Status: Jigsaw is World Wide Web Consortium’s leading-edge Web Server platform, providing a sample HTTP 1.1 implementation.
Authorization: Open source i.e. Freeware
OS Support: Windows, Linux, UNIX, FreeBSD, Mac OS X

  1. Sun Java System Web Server
Status: This Web Server is suitable for medium & large website & support JSP, Java Serverlet, PHP, Perl, Python, Ruby on Rails, ASP and Coldfusion server side languages.  
Authorization: Free
OS Support: Solaris, Windows, Linux, HP-UX

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