consistent with other popular
        implementations of host name-based access control, such as the
        Apache HTTP Server and TCP Wrappers.
       </p></div></dd><dt><span class="term"><em class="replaceable"><code>IP-address</code></em><br /></span><span class="term"><em class="replaceable"><code>IP-mask</code></em></span></dt><dd><p>
       These two fields can be used as an alternative to the
       <em class="replaceable"><code>IP-address</code></em><code class="literal">/</code><em class="replace