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- <title>Apache Virtual Host documentation - Apache HTTP Server</title>
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- <p class="menu"><a href="../mod/">Modules</a> | <a href="../mod/directives.html">Directives</a> | <a href="../faq/">FAQ</a> | <a href="../glossary.html">Glossary</a> | <a href="../sitemap.html">Sitemap</a></p>
- <p class="apache">Apache HTTP Server Version 2.0</p>
- <img alt="" src="../images/feather.gif" /></div>
- <div class="up"><a href="../"><img title="<-" alt="<-" src="../images/left.gif" /></a></div>
- <div id="path">
- <a href="http://www.apache.org/">Apache</a> > <a href="http://httpd.apache.org/">HTTP Server</a> > <a href="http://httpd.apache.org/docs-project/">Documentation</a> > <a href="../">Version 2.0</a></div><div id="page-content"><div id="preamble"><h1>Apache Virtual Host documentation</h1>
-
- <p>The term <cite>Virtual Host</cite> refers to the practice of
- running more than one web site (such as
- <code>www.company1.com</code> and <code>www.company2.com</code>)
- on a single machine. Virtual hosts can be "<a href="ip-based.html">IP-based</a>," meaning that you have a
- different IP address for every web site, or "<a href="name-based.html">name-based</a>," meaning that you have
- multiple names running on each IP address. The fact that they
- are running on the same physical server is not apparent to the
- end user.</p>
-
- <p>Apache was one of the first servers to support IP-based
- virtual hosts right out of the box. Versions 1.1 and later of
- Apache support both IP-based and name-based virtual hosts
- (vhosts). The latter variant of virtual hosts is sometimes also
- called <em>host-based</em> or <em>non-IP virtual hosts</em>.</p>
-
- <p>Below is a list of documentation pages which explain all
- details of virtual host support in Apache version 1.3 and
- later.</p>
-
- </div>
- <div id="quickview"><ul id="toc"><li><img alt="" src="../images/down.gif" /> <a href="#support">Virtual Host Support</a></li>
- <li><img alt="" src="../images/down.gif" /> <a href="#directives">Configuration directives</a></li>
- </ul><h3>See also</h3><ul class="seealso"><li><code class="module"><a href="../mod/mod_vhost_alias.html">mod_vhost_alias</a></code></li><li><a href="name-based.html">Name-based virtual
- hosts</a></li><li><a href="ip-based.html">IP-based virtual hosts</a></li><li><a href="examples.html">Virtual host examples</a></li><li><a href="fd-limits.html">File descriptor limits</a></li><li><a href="mass.html">Mass virtual hosting</a></li><li><a href="details.html">Details of host matching</a></li></ul></div>
- <div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div>
- <div class="section">
- <h2><a name="support" id="support">Virtual Host Support</a></h2>
-
- <ul>
- <li><a href="name-based.html">Name-based Virtual Hosts</a> (More
- than one web site per IP address)</li>
- <li><a href="ip-based.html">IP-based Virtual Hosts</a> (An IP
- address for each web site)</li>
- <li><a href="examples.html">Virtual Host examples for common
- setups</a></li>
- <li><a href="fd-limits.html">File Descriptor Limits</a> (or,
- <em>Too many log files</em>)</li>
- <li><a href="mass.html">Dynamically Configured Mass Virtual
- Hosting</a></li>
- <li><a href="details.html">In-Depth Discussion of Virtual Host
- Matching</a></li>
- </ul>
-
- </div><div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div>
- <div class="section">
- <h2><a name="directives" id="directives">Configuration directives</a></h2>
-
- <ul>
- <li><code class="directive"><a href="../mod/core.html#virtualhost"><VirtualHost></a></code></li>
- <li><code class="directive"><a href="../mod/core.html#namevirtualhost">NameVirtualHost</a></code></li>
- <li><code class="directive"><a href="../mod/core.html#servername">ServerName</a></code></li>
- <li><code class="directive"><a href="../mod/core.html#serveralias">ServerAlias</a></code></li>
- <li><code class="directive"><a href="../mod/core.html#serverpath">ServerPath</a></code></li>
- </ul>
-
- <p>If you are trying to debug your virtual host configuration, you
- may find the Apache <code>-S</code> command line switch
- useful. That is, type the following command:</p>
-
- <div class="example"><p><code>
- /usr/local/apache2/bin/httpd -S
- </code></p></div>
-
- <p>This command will dump out a description of how Apache parsed
- the configuration file. Careful examination of the IP addresses and
- server names may help uncover configuration mistakes. (See <a href="../programs/httpd.html">the docs for the httpd program</a> for
- other command line options)</p>
-
- </div></div>
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