What Is Apache HTTP Server "httpd"

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∟Running Apache HTTP Server (httpd) on Linux Systems

∟What Is Apache HTTP Server "httpd"

This section provides a quick introduction of Apache HTTP Server, also referred as HTTP daemon or httpd.

What Is Apache HTTP Server "httpd"? - Apache HTTP Server, also referred as HTTP daemon or httpd, is probably the oldest and most popular HTTP (Web) server. It was originally developed by Rob McCool in 1995 at the NCSA National Center for Supercomputing Applications of University of Illinois.

As of March 2022, Netcraft estimated that Apache served 23.04% of Websites on the Internet, followed by Nginx, 22.01%; Cloudflare, 19.53%; IIS (Internet Information Services) 5.78%.

Main features of Apache HTTP Server:

Free and open-source.
Powerful - Can be scaled to handle tens of thousands of connections.
Cross platform and extendable.
Secure - Supports SSL, and user authentication.
Easy to use and well documented.

Here are the major versions of Apache HTTP Server and their release dates:

Version   Release Date
-------   ------------
2.4.59    2024-04-04
2.4       2012-02-21
2.2.29    2014-09-02
2.2       2005-12-01
2.1       2005-11-05
2.0.52    2004-10-12
2.0       2002-04-05
1.3.33    2004-10-30
1.3       1998-06-01
1.0       1995