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d5d794fc2f4cc9ca6d6da17cfa2cdcd8d244bacdnd<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>
d5d794fc2f4cc9ca6d6da17cfa2cdcd8d244bacdnd<div class="up"><a href="./"><img title="<-" alt="<-" src="/images/left.gif" /></a></div>
d5d794fc2f4cc9ca6d6da17cfa2cdcd8d244bacdnd<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 2.1</a></div><div id="page-content"><div id="preamble"><h1>Binding</h1>
d5d794fc2f4cc9ca6d6da17cfa2cdcd8d244bacdnd <p>Configuring Apache to listen on specific addresses and ports.</p>
7db9f691a00ead175b03335457ca296a33ddf31bnd<div id="quickview"><ul id="toc"><li><img alt="" src="/images/down.gif" /> <a href="#overview">Overview</a></li>
25a848437bc0e4d58675054fd4acc35242837e58slive<li><img alt="" src="/images/down.gif" /> <a href="#ipv6">Special IPv6 Considerations</a></li>
25a848437bc0e4d58675054fd4acc35242837e58slive<li><img alt="" src="/images/down.gif" /> <a href="#virtualhost">How This Works With Virtual Hosts</a></li>
fc56d0d97412cd0421430f3e415c9b19be97e101nd</ul><h3>See also</h3><ul class="seealso"><li><a href="vhosts/">Virtual Hosts</a></li><li><a href="dns-caveats.html">DNS Issues</a></li></ul></div>
fc56d0d97412cd0421430f3e415c9b19be97e101nd<div class="top"><a href="#page-header"><img alt="top" src="/images/up.gif" /></a></div>
fc56d0d97412cd0421430f3e415c9b19be97e101nd <table class="related"><tr><th>Related Modules</th><th>Related Directives</th></tr><tr><td><ul><li><code class="module"><a href="/mod/core.html">core</a></code></li><li><code class="module"><a href="/mod/mpm_common.html">mpm_common</a></code></li></ul></td><td><ul><li><code class="directive"><a href="/mod/core.html#virtualhost">VirtualHost</a></code></li><li><code class="directive"><a href="/mod/mpm_common.html#listen">Listen</a></code></li></ul></td></tr></table>
25a848437bc0e4d58675054fd4acc35242837e58slive <p>When Apache starts, it binds to some port and address on
fc56d0d97412cd0421430f3e415c9b19be97e101nd the local machine and waits for incoming requests. By default,
fc56d0d97412cd0421430f3e415c9b19be97e101nd it listens to all addresses on the machine. However, it needs to
fc56d0d97412cd0421430f3e415c9b19be97e101nd be told to listen on specific ports, or to listen on only selected
fc56d0d97412cd0421430f3e415c9b19be97e101nd addresses, or a combination. This is often combined with the
25a848437bc0e4d58675054fd4acc35242837e58slive Virtual Host feature which determines how Apache responds to
fc56d0d97412cd0421430f3e415c9b19be97e101nd different IP addresses, hostnames and ports.</p>
b2e4e96cb2848d55d437c11c53d944edac79824aslive <p>The <code class="directive"><a href="/mod/mpm_common.html#listen">Listen</a></code>
fc56d0d97412cd0421430f3e415c9b19be97e101nd directive tells the server to accept
fc56d0d97412cd0421430f3e415c9b19be97e101nd incoming requests only on the specified port or
fc56d0d97412cd0421430f3e415c9b19be97e101nd address-and-port combinations. If only a port number is
fc56d0d97412cd0421430f3e415c9b19be97e101nd specified in the <code class="directive"><a href="/mod/mpm_common.html#listen">Listen</a></code>
25a848437bc0e4d58675054fd4acc35242837e58slive directive, the server
fc56d0d97412cd0421430f3e415c9b19be97e101nd listens to the given port on all interfaces. If an IP address
fc56d0d97412cd0421430f3e415c9b19be97e101nd is given as well as a port, the server will listen on the given
b2e4e96cb2848d55d437c11c53d944edac79824aslive port and interface. Multiple Listen directives may be used to
fc56d0d97412cd0421430f3e415c9b19be97e101nd specify a number of addresses and ports to listen on. The
fc56d0d97412cd0421430f3e415c9b19be97e101nd server will respond to requests from any of the listed
fc56d0d97412cd0421430f3e415c9b19be97e101nd addresses and ports.</p>
fc56d0d97412cd0421430f3e415c9b19be97e101nd <p>For example, to make the server accept connections on both
25a848437bc0e4d58675054fd4acc35242837e58slive port 80 and port 8000, use:</p>
sockets (i.e., to disable IPv4-mapped addresses), specify the
<p class="apache">Maintained by the <a href="http://httpd.apache.org/docs-project/">Apache HTTP Server Documentation Project</a></p>
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