<p>Apache is generally recognized as the world&#39;s most popular Web server (<a href="https://www.lifewire.com/hypertext-transfer-protocol-817944" data-component="link" data-source="inlineLink" data-type="internalLink" data-ordinal="1">HTTP</a> server). Originally designed for Unix environments, the Apache Web server has been ported to Windows and other <a href="https://www.lifewire.com/operating-systems-and-computer-networks-817375" data-component="link" data-source="inlineLink" data-type="internalLink" data-ordinal="2">network operating systems</a>. The name &#34;Apache&#34; derives from the word &#34;patchy&#34; that the Apache developers used to describe early versions of their software.</p><p>The Apache Web server provides a full range of Web server features, including CGI, <a href="https://www.lifewire.com/secure-sockets-layer-816471" data-component="link" data-source="inlineLink" data-type="internalLink" data-ordinal="3">SSL</a>, and virtual domains. Apache also supports <a href="https://www.lifewire.com/what-is-a-cms-plugin-756561" data-component="link" data-source="inlineLink" data-type="internalLink" data-ordinal="4">plug-in modules</a> for extensibility. Apache is free software, distributed by the <em>Apache Software Foundation</em> that promotes various free and open source advanced Web technologies.</p><p>For more about the Apache web server and how to utilize it in computer networking, take a look at the following articles:</p><ul><li>How to Install Apache on Linux</li><li>How to Install Apache on Windows</li><li>How to Start an Apache Web Server (Linux)</li><li>How to Restart an Apache Web Server</li><li>How to Set Up a DNS Alias</li></ul>