mirror of
https://github.com/apache/httpd.git
synced 2025-11-03 17:53:20 +03:00
b134f9aac1
actually necessary, but it's sort of an annual tradition. We think tradition is pretty important. git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@895795 13f79535-47bb-0310-9956-ffa450edef68
165 lines
10 KiB
XML
165 lines
10 KiB
XML
<?xml version="1.0" encoding="ISO-8859-1"?>
|
|
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
|
|
<html xmlns="http://www.w3.org/1999/xhtml" lang="en" xml:lang="en"><head><!--
|
|
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
|
|
This file is generated from xml source: DO NOT EDIT
|
|
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
|
|
-->
|
|
<title>Apache IP-based Virtual Host Support - Apache HTTP Server</title>
|
|
<link href="../style/css/manual.css" rel="stylesheet" media="all" type="text/css" title="Main stylesheet" />
|
|
<link href="../style/css/manual-loose-100pc.css" rel="alternate stylesheet" media="all" type="text/css" title="No Sidebar - Default font size" />
|
|
<link href="../style/css/manual-print.css" rel="stylesheet" media="print" type="text/css" />
|
|
<link href="../images/favicon.ico" rel="shortcut icon" /></head>
|
|
<body id="manual-page"><div id="page-header">
|
|
<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 2.3</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/">Documentation</a> > <a href="../">Version 2.3</a> > <a href="./">Virtual Hosts</a></div><div id="page-content"><div id="preamble"><h1>Apache IP-based Virtual Host Support</h1>
|
|
<div class="toplang">
|
|
<p><span>Available Languages: </span><a href="../en/vhosts/ip-based.html" title="English"> en </a> |
|
|
<a href="../fr/vhosts/ip-based.html" hreflang="fr" rel="alternate" title="Français"> fr </a> |
|
|
<a href="../ja/vhosts/ip-based.html" hreflang="ja" rel="alternate" title="Japanese"> ja </a> |
|
|
<a href="../ko/vhosts/ip-based.html" hreflang="ko" rel="alternate" title="Korean"> ko </a> |
|
|
<a href="../tr/vhosts/ip-based.html" hreflang="tr" rel="alternate" title="Türkçe"> tr </a></p>
|
|
</div>
|
|
</div>
|
|
<div id="quickview"><ul id="toc"><li><img alt="" src="../images/down.gif" /> <a href="#requirements">System requirements</a></li>
|
|
<li><img alt="" src="../images/down.gif" /> <a href="#howto">How to set up Apache</a></li>
|
|
<li><img alt="" src="../images/down.gif" /> <a href="#multiple">Setting up multiple daemons</a></li>
|
|
<li><img alt="" src="../images/down.gif" /> <a href="#single">Setting up a single daemon
|
|
with virtual hosts</a></li>
|
|
</ul><h3>See also</h3><ul class="seealso"><li>
|
|
<a href="name-based.html">Name-based Virtual Hosts Support</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="requirements" id="requirements">System requirements</a></h2>
|
|
|
|
<p>As the term <cite>IP-based</cite> indicates, the server
|
|
<strong>must have a different IP address for each IP-based
|
|
virtual host</strong>. This can be achieved by the machine
|
|
having several physical network connections, or by use of
|
|
virtual interfaces which are supported by most modern operating
|
|
systems (see system documentation for details, these are
|
|
frequently called "ip aliases", and the "ifconfig" command is
|
|
most commonly used to set them up).</p>
|
|
|
|
</div><div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div>
|
|
<div class="section">
|
|
<h2><a name="howto" id="howto">How to set up Apache</a></h2>
|
|
|
|
<p>There are two ways of configuring apache to support multiple
|
|
hosts. Either by running a separate <code class="program"><a href="../programs/httpd.html">httpd</a></code> daemon for
|
|
each hostname, or by running a single daemon which supports all the
|
|
virtual hosts.</p>
|
|
|
|
<p>Use multiple daemons when:</p>
|
|
|
|
<ul>
|
|
<li>There are security partitioning issues, such as company1
|
|
does not want anyone at company2 to be able to read their
|
|
data except via the web. In this case you would need two
|
|
daemons, each running with different <code class="directive"><a href="../mod/mpm_common.html#user">User</a></code>, <code class="directive"><a href="../mod/mpm_common.html#group">Group</a></code>, <code class="directive"><a href="../mod/mpm_common.html#listen">Listen</a></code>, and <code class="directive"><a href="../mod/core.html#serverroot">ServerRoot</a></code> settings.</li>
|
|
|
|
<li>You can afford the memory and file descriptor
|
|
requirements of listening to every IP alias on the
|
|
machine. It's only possible to <code class="directive"><a href="../mod/mpm_common.html#listen">Listen</a></code> to the "wildcard"
|
|
address, or to specific addresses. So if you have a need to
|
|
listen to a specific address for whatever reason, then you
|
|
will need to listen to all specific addresses. (Although one
|
|
<code class="program"><a href="../programs/httpd.html">httpd</a></code> could listen to N-1 of the addresses, and another could
|
|
listen to the remaining address.)</li>
|
|
</ul>
|
|
|
|
<p>Use a single daemon when:</p>
|
|
|
|
<ul>
|
|
<li>Sharing of the httpd configuration between virtual hosts
|
|
is acceptable.</li>
|
|
|
|
<li>The machine services a large number of requests, and so
|
|
the performance loss in running separate daemons may be
|
|
significant.</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="multiple" id="multiple">Setting up multiple daemons</a></h2>
|
|
|
|
<p>Create a separate <code class="program"><a href="../programs/httpd.html">httpd</a></code> installation for each
|
|
virtual host. For each installation, use the <code class="directive"><a href="../mod/mpm_common.html#listen">Listen</a></code> directive in the
|
|
configuration file to select which IP address (or virtual host)
|
|
that daemon services. e.g.</p>
|
|
|
|
<div class="example"><p><code>
|
|
Listen www.smallco.com:80
|
|
</code></p></div>
|
|
|
|
<p>It is recommended that you use an IP address instead of a
|
|
hostname (see <a href="../dns-caveats.html">DNS caveats</a>).</p>
|
|
|
|
</div><div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div>
|
|
<div class="section">
|
|
<h2><a name="single" id="single">Setting up a single daemon
|
|
with virtual hosts</a></h2>
|
|
|
|
<p>For this case, a single <code class="program"><a href="../programs/httpd.html">httpd</a></code> will service
|
|
requests for the main server and all the virtual hosts. The <code class="directive"><a href="../mod/core.html#virtualhost">VirtualHost</a></code> directive
|
|
in the configuration file is used to set the values of <code class="directive"><a href="../mod/core.html#serveradmin">ServerAdmin</a></code>, <code class="directive"><a href="../mod/core.html#servername">ServerName</a></code>, <code class="directive"><a href="../mod/core.html#documentroot">DocumentRoot</a></code>, <code class="directive"><a href="../mod/core.html#errorlog">ErrorLog</a></code> and <code class="directive"><a href="../mod/mod_log_config.html#transferlog">TransferLog</a></code>
|
|
or <code class="directive"><a href="../mod/mod_log_config.html#customlog">CustomLog</a></code>
|
|
configuration directives to different values for each virtual
|
|
host. e.g.</p>
|
|
|
|
<div class="example"><p><code>
|
|
<VirtualHost 172.20.30.40:80><br />
|
|
ServerAdmin webmaster@mail.smallco.com<br />
|
|
DocumentRoot /groups/smallco/www<br />
|
|
ServerName www.smallco.com<br />
|
|
ErrorLog /groups/smallco/logs/error_log<br />
|
|
TransferLog /groups/smallco/logs/access_log<br />
|
|
</VirtualHost><br />
|
|
<br />
|
|
<VirtualHost 172.20.30.50:80><br />
|
|
ServerAdmin webmaster@mail.baygroup.org<br />
|
|
DocumentRoot /groups/baygroup/www<br />
|
|
ServerName www.baygroup.org<br />
|
|
ErrorLog /groups/baygroup/logs/error_log<br />
|
|
TransferLog /groups/baygroup/logs/access_log<br />
|
|
</VirtualHost>
|
|
</code></p></div>
|
|
|
|
<p>It is recommended that you use an IP address instead of a
|
|
hostname in the <VirtualHost> directive
|
|
(see <a href="../dns-caveats.html">DNS caveats</a>).</p>
|
|
|
|
<p>Almost <strong>any</strong> configuration directive can be
|
|
put in the VirtualHost directive, with the exception of
|
|
directives that control process creation and a few other
|
|
directives. To find out if a directive can be used in the
|
|
VirtualHost directive, check the <a href="../mod/directive-dict.html#Context">Context</a> using the
|
|
<a href="../mod/directives.html">directive index</a>.</p>
|
|
|
|
<p><code class="directive"><a href="../mod/mod_suexec.html#suexecusergroup">SuexecUserGroup</a></code>
|
|
may be used inside a
|
|
VirtualHost directive if the <a href="../suexec.html">suEXEC
|
|
wrapper</a> is used.</p>
|
|
|
|
<p><em>SECURITY:</em> When specifying where to write log files,
|
|
be aware of some security risks which are present if anyone
|
|
other than the user that starts Apache has write access to the
|
|
directory where they are written. See the <a href="../misc/security_tips.html">security tips</a> document
|
|
for details.</p>
|
|
|
|
</div></div>
|
|
<div class="bottomlang">
|
|
<p><span>Available Languages: </span><a href="../en/vhosts/ip-based.html" title="English"> en </a> |
|
|
<a href="../fr/vhosts/ip-based.html" hreflang="fr" rel="alternate" title="Français"> fr </a> |
|
|
<a href="../ja/vhosts/ip-based.html" hreflang="ja" rel="alternate" title="Japanese"> ja </a> |
|
|
<a href="../ko/vhosts/ip-based.html" hreflang="ko" rel="alternate" title="Korean"> ko </a> |
|
|
<a href="../tr/vhosts/ip-based.html" hreflang="tr" rel="alternate" title="Türkçe"> tr </a></p>
|
|
</div><div id="footer">
|
|
<p class="apache">Copyright 2010 The Apache Software Foundation.<br />Licensed under the <a href="http://www.apache.org/licenses/LICENSE-2.0">Apache License, Version 2.0</a>.</p>
|
|
<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></div>
|
|
</body></html> |