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virtual hosts.</p>
</div>
+ <div class="note"><h3>ServerName inheritance</h3>
+ <p> It is best to always explicitly list a <code class="directive"><a href="../mod/core.html#servername">ServerName</a></code> in every name-based virtual host.</p>
+ <p>If a <code class="directive"><a href="../mod/core.html#virtualhost">VirtualHost</a></code> doesn't specify
+ a <code class="directive"><a href="../mod/core.html#servername">ServerName</a></code>, a server name will be
+ inherited from the base server configuration. If no server name was
+ specified globally, one is detected at startup through reverse DNS resolution
+ of the first listening address. In either case, this inherited server name
+ will influenced name-based virtual host resolution, so it is best to always
+ explicitly list a <code class="directive"><a href="../mod/core.html#servername">ServerName</a></code> in every
+ name-based virtual host.</p>
+ </div>
+
<p>For example, suppose that you are serving the domain
<code>www.example.com</code> and you wish to add the virtual host
<code>other.example.com</code>, which points at the same IP address.