| <?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>mod_proxy_express - 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> |
| <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 2.5</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 2.5</a> > <a href="./">Modules</a></div> |
| <div id="page-content"> |
| <div id="preamble"><h1>Apache Module mod_proxy_express</h1> |
| <div class="toplang"> |
| <p><span>Available Languages: </span><a href="../en/mod/mod_proxy_express.html" title="English"> en </a></p> |
| </div> |
| <table class="module"><tr><th><a href="module-dict.html#Description">Description:</a></th><td>Dynamic mass reverse proxy extension for |
| <code class="module"><a href="../mod/mod_proxy.html">mod_proxy</a></code></td></tr> |
| <tr><th><a href="module-dict.html#Status">Status:</a></th><td>Extension</td></tr> |
| <tr><th><a href="module-dict.html#ModuleIdentifier">Module Identifier:</a></th><td>proxy_express_module</td></tr> |
| <tr><th><a href="module-dict.html#SourceFile">Source File:</a></th><td>mod_proxy_express.c</td></tr></table> |
| <h3>Summary</h3> |
| |
| <p>This module creates dynamically configured mass reverse |
| proxies, by mapping the Host: header of the HTTP request to |
| a server name and backend URL stored in a DBM file. |
| This allows for easy use of a huge number of reverse proxies |
| with no configuration changes. It is much less feature-full |
| than <code class="module"><a href="../mod/mod_proxy_balancer.html">mod_proxy_balancer</a></code>, which also provides |
| dynamic growth, but is intended to handle much, much |
| larger numbers of backends. It is ideally suited as a |
| front-end HTTP switch.</p> |
| |
| <p>This module <em>requires</em> the service of <code class="module"><a href="../mod/mod_proxy.html">mod_proxy</a></code>.</p> |
| |
| <div class="warning"><h3>Warning</h3> |
| <p>Do not enable proxying until you have <a href="mod_proxy.html#access">secured your server</a>. Open proxy |
| servers are dangerous both to your network and to the Internet at |
| large.</p> |
| </div> |
| |
| <div class="note"><h3>Limitations</h3> |
| <ul> |
| <li>This module is not intended to replace the dynamic capability of |
| <code class="module"><a href="../mod/mod_proxy_balancer.html">mod_proxy_balancer</a></code>. Instead, it is intended to be mostly |
| a lightweight and fast alternative to using <code class="module"><a href="../mod/mod_rewrite.html">mod_rewrite</a></code> |
| with <code class="directive">RewriteMap</code> and the <code>[P]</code> flag |
| for mapped reverse proxying. |
| </li> |
| <li>It does not support regex or pattern matching at all. |
| </li> |
| <li>It emulates: |
| <div class="example"><p><code> |
| ProxyPass / backend.server:port<br /> |
| ProxyPassReverse / backend.server:port<br /> |
| </code></p></div> |
| That is, the entire URL is appended to the mapped backend |
| URL. This is in keeping with the intent of being a simple |
| but fast reverse proxy switch. |
| </li> |
| </ul> |
| </div> |
| |
| </div> |
| <div id="quickview"><h3 class="directives">Directives</h3> |
| <ul id="toc"> |
| <li><img alt="" src="../images/down.gif" /> <a href="#proxyexpressdbmfile">ProxyExpressDBMFile</a></li> |
| <li><img alt="" src="../images/down.gif" /> <a href="#proxyexpressdbmtype">ProxyExpressDBMType</a></li> |
| <li><img alt="" src="../images/down.gif" /> <a href="#proxyexpressenable">ProxyExpressEnable</a></li> |
| </ul> |
| <h3>See also</h3> |
| <ul class="seealso"> |
| <li><code class="module"><a href="../mod/mod_proxy.html">mod_proxy</a></code></li> |
| </ul></div> |
| |
| <div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div> |
| <div class="directive-section"><h2><a name="ProxyExpressDBMFile" id="ProxyExpressDBMFile">ProxyExpressDBMFile</a> <a name="proxyexpressdbmfile" id="proxyexpressdbmfile">Directive</a></h2> |
| <table class="directive"> |
| <tr><th><a href="directive-dict.html#Description">Description:</a></th><td>Pathname to DBM file.</td></tr> |
| <tr><th><a href="directive-dict.html#Syntax">Syntax:</a></th><td><code>ProxyExpressDBMFile <pathname></code></td></tr> |
| <tr><th><a href="directive-dict.html#Default">Default:</a></th><td><code>None</code></td></tr> |
| <tr><th><a href="directive-dict.html#Context">Context:</a></th><td>server config, virtual host</td></tr> |
| <tr><th><a href="directive-dict.html#Status">Status:</a></th><td>Extension</td></tr> |
| <tr><th><a href="directive-dict.html#Module">Module:</a></th><td>mod_proxy_express</td></tr> |
| <tr><th><a href="directive-dict.html#Compatibility">Compatibility:</a></th><td>Available in Apache 2.3.13 and later</td></tr> |
| </table> |
| <p>The <code class="directive">ProxyExpressDBMFile</code> directive |
| points to the location of the Express map DBM file. This |
| file serves to map the incoming server name, obtained from |
| the Host: header, to a backend URL.</p> |
| |
| <div class="note"><h3>Note</h3> |
| <p>The file is constructed from a plain text file format using |
| the <code><a href="../programs/httxt2dbm.html">httxt2dbm</a></code> |
| utility.</p> |
| |
| <div class="example"><h3>ProxyExpress map file</h3><p><code> |
| ##<br /> |
| ##express-map.txt:<br /> |
| ##<br /> |
| <br /> |
| www1.example.com http://192.168.211.2:8080<br /> |
| www2.example.com http://192.168.211.12:8088<br /> |
| www3.example.com http://192.168.212.10<br /> |
| </code></p></div> |
| |
| <div class="example"><h3>Create DBM file</h3><p><code> |
| httxt2dbm -i express-map.txt -o emap<br /> |
| </code></p></div> |
| |
| <div class="example"><h3>Configuration</h3><p><code> |
| ProxyExpressDBMFile emap<br /> |
| </code></p></div> |
| </div> |
| |
| </div> |
| <div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div> |
| <div class="directive-section"><h2><a name="ProxyExpressDBMType" id="ProxyExpressDBMType">ProxyExpressDBMType</a> <a name="proxyexpressdbmtype" id="proxyexpressdbmtype">Directive</a></h2> |
| <table class="directive"> |
| <tr><th><a href="directive-dict.html#Description">Description:</a></th><td>DBM type of file.</td></tr> |
| <tr><th><a href="directive-dict.html#Syntax">Syntax:</a></th><td><code>ProxyExpressDBMFile <type></code></td></tr> |
| <tr><th><a href="directive-dict.html#Default">Default:</a></th><td><code>"default"</code></td></tr> |
| <tr><th><a href="directive-dict.html#Context">Context:</a></th><td>server config, virtual host</td></tr> |
| <tr><th><a href="directive-dict.html#Status">Status:</a></th><td>Extension</td></tr> |
| <tr><th><a href="directive-dict.html#Module">Module:</a></th><td>mod_proxy_express</td></tr> |
| <tr><th><a href="directive-dict.html#Compatibility">Compatibility:</a></th><td>Available in Apache 2.3.13 and later</td></tr> |
| </table> |
| <p>The <code class="directive">ProxyExpressDBMType</code> directive |
| controls the DBM type expected by the module. The default |
| is the default DBM type created with <code> |
| <a href="../programs/httxt2dbm.html">httxt2dbm</a></code></p> |
| |
| </div> |
| <div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div> |
| <div class="directive-section"><h2><a name="ProxyExpressEnable" id="ProxyExpressEnable">ProxyExpressEnable</a> <a name="proxyexpressenable" id="proxyexpressenable">Directive</a></h2> |
| <table class="directive"> |
| <tr><th><a href="directive-dict.html#Description">Description:</a></th><td>Enable the module functionality.</td></tr> |
| <tr><th><a href="directive-dict.html#Syntax">Syntax:</a></th><td><code>ProxyExpressEnable [on|off]</code></td></tr> |
| <tr><th><a href="directive-dict.html#Default">Default:</a></th><td><code>off</code></td></tr> |
| <tr><th><a href="directive-dict.html#Context">Context:</a></th><td>server config, virtual host</td></tr> |
| <tr><th><a href="directive-dict.html#Status">Status:</a></th><td>Extension</td></tr> |
| <tr><th><a href="directive-dict.html#Module">Module:</a></th><td>mod_proxy_express</td></tr> |
| <tr><th><a href="directive-dict.html#Compatibility">Compatibility:</a></th><td>Available in Apache 2.3.13 and later</td></tr> |
| </table> |
| <p>The <code class="directive">ProxyExpressEnable</code> directive |
| controls whether the module will be active.</p> |
| |
| </div> |
| </div> |
| <div class="bottomlang"> |
| <p><span>Available Languages: </span><a href="../en/mod/mod_proxy_express.html" title="English"> en </a></p> |
| </div><div id="footer"> |
| <p class="apache">Copyright 2012 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> |
