Table 201 Netcraft Survey Results April 2006

Web Server Number Percentage

Apache 50,588,433 62.72%

Microsoft!*! 20,343,656 25.22%

SunONE 1,907,503 2.36%

Zeus 563,381 0.70%

[*] All web server products

Note that these statistics do not reflect Apache's use on internal networks, known as intranets.

The name Apache appeared during the early development of the software because it was "a patchy" server, made up of patches for the freely available source code of the NCSA HTTPd web server. For a while after the NCSA HTTPd project was discontinued, a number of people wrote a variety of patches for the code, to either fix bugs or add features they wanted. A lot of this code was floating around and people were freely sharing it, but it was completely unmanaged.

After a while, Brian Behlendorf and Cliff Skolnick set up a centralized repository of these patches, and the Apache project was born. The project is still composed of a small core group of programmers, but anyone is welcome to submit patches to the group for possible inclusion in the code.

There has been a surge of interest in the Apache project over the past several years, partially buoyed by a new interest in open source on the part of enterprise-level information services. It's also due in part to crippling security flaws found in Microsoft's Internet Information Services (IIS); the existence of malicious web task exploits; and operating system and networking vulnerabilities to the now-infamous Code Red, Blaster, and Nimda worms. IBM made an early commitment to support and use Apache as the basis for its web offerings and has dedicated substantial resources to the project because it makes more sense to use an established, proven web server.

In mid-1999, The Apache Software Foundation was incorporated as a nonprofit company. A board of directors, who are elected on an annual basis by the ASF members, oversees the company. This company provides a foundation for several open-source software development projects, including the Apache Web Server project.

The best places to find out about Apache are the Apache Group's website,, and the Apache Week website,, where you can subscribe to receive Apache Week by email to keep up on the latest developments in the project, keep abreast of security advisories, and research bug fixes.

You'll find an overview of Apache in its frequently asked questions (FAQs) at In addition to extensive online documentation, you'll also find the complete documentation for Apache in the HTML directory of your Apache server. You can access this documentation by looking at http://localhost/manual/index.html on your new Ubuntu system with one of the web browsers included on your system. You'll need to have Apache running on your system!

Ubuntu ships with Apache 2.0, and the server (named httpd) is included on this book's CD-ROMs and DVD. You can obtain the latest version of Apache as a package file from an Ubuntu FTP server, through Synaptic, or by getting the source code from the Apache website and, in true Linux tradition, build it for yourself.

To determine the version of Apache included with your system, use the web server's -v command-line option like this:

Server version: Apache/2.0.50

Server built: Jun 29 2004 11:11:55

Server's Module Magic Number: 2 002 0903:8

Architecture: 32-bit

Server compiled with

The output displays the version number, build date and time, platform, and various options used


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