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      <h3>Apache HTTP Server Version 2.0</h3>
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    <h1 align="center">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
    <samp>www.company1.com</samp> and <samp>www.company2.com</samp>)
    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 a single IP address. The fact that they
    are running on the same 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>
    <hr />

    <h2>Virtual Host Support</h2>

    <ul>
      <li><a href="name-based.html">Name-based Virtual Hosts</a> (One IP
      address, multiple web sites)</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>

    <h2>Configuration directives</h2>

    <ul>
      <li><a
      href="../mod/core.html#virtualhost">&lt;VirtualHost&gt;</a></li>

      <li><a
      href="../mod/core.html#namevirtualhost">NameVirtualHost</a></li>

      <li><a href="../mod/core.html#servername">ServerName</a></li>

      <li><a href="../mod/core.html#serveralias">ServerAlias</a></li>

      <li><a href="../mod/core.html#serverpath">ServerPath</a></li>

      <li><b>See also</b> <a 
      href="../mod/mod_vhost_alias.html">mod_vhost_alias</a></li>
    </ul>

    <p>If you are trying to debug your virtual host configuration, you
    may find the Apache <code>-t -D DUMP_VHOSTS</code> command line switch 
    useful. That is, type the following command:</p>

    <blockquote><table cellpadding="10"><tr><td bgcolor="#eeeeee"><code>
    /usr/local/apache/bin/httpd -t -D DUMP_VHOSTS
    </code></td></tr></table></blockquote>
    
    <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>

        <hr />

    <h3 align="center">Apache HTTP Server Version 2.0</h3>
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