<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
-project/">Documentation</a> > <a href="../">Version 2.3</a> > <a href="./">Modules</a></div>
+<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="./">Modules</a></div>
<div id="page-content">
<div id="preamble"><h1>Apache Module mod_proxy_http</h1>
<div class="toplang">
-<p><span>Available Languages: </span><a href="../en/mod/mod_proxy_http.html" title="English"> en </a></p>
+<p><span>Available Languages: </span><a href="../en/mod/mod_proxy_http.html" title="English"> en </a> |
+<a href="../fr/mod/mod_proxy_http.html" hreflang="fr" rel="alternate" title="Français"> fr </a></p>
</div>
<table class="module"><tr><th><a href="module-dict.html#Description">Description:</a></th><td>HTTP support module 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_http_module</td></tr>
-<tr><th><a href="module-dict.html#SourceFile">Source File:</a></th><td>proxy_http.c</td></tr></table>
+<tr><th><a href="module-dict.html#SourceFile">Source File:</a></th><td>mod_proxy_http.c</td></tr></table>
<h3>Summary</h3>
<p>This module <em>requires</em> the service of <code class="module"><a href="../mod/mod_proxy.html">mod_proxy</a></code>. It provides the features used for
- proxying HTTP requests. <code class="module"><a href="../mod/mod_proxy_http.html">mod_proxy_http</a></code>
+ proxying HTTP
and HTTPS requests. <code class="module"><a href="../mod/mod_proxy_http.html">mod_proxy_http</a></code>
supports HTTP/0.9, HTTP/1.0 and HTTP/1.1. It does <em>not</em>
provide any caching abilities. If you want to set up a caching
proxy, you might want to use the additional service of the
<div id="quickview"><h3 class="directives">Directives</h3>
<p>This module provides no
directives.</p>
-<h3>See also</h3>
+<h3>Topics</h3>
+<ul id="topics">
+<li><img alt="" src="../images/down.gif" /> <a href="#env">Environment Variables</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>
<li><code class="module"><a href="../mod/mod_proxy_connect.html">mod_proxy_connect</a></code></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="env" id="env">Environment Variables</a></h2>
+ <p>In addition to the configuration directives that control the
+ behaviour of <code class="module"><a href="../mod/mod_proxy.html">mod_proxy</a></code>, there are a number of
+ <dfn>environment variables</dfn> that control the HTTP protocol
+ provider:</p>
+ <dl>
+ <dt>proxy-sendextracrlf</dt>
+ <dd>Causes proxy to send an extra CR-LF newline on the end of a
+ request. This is a workaround for a bug in some browsers.</dd>
+ <dt>force-proxy-request-1.0</dt>
+ <dd>Forces the proxy to send requests to the backend as HTTP/1.0
+ and disables HTTP/1.1 features.</dd>
+ <dt>proxy-nokeepalive</dt>
+ <dd>Forces the proxy to close the backend connection after
+ each request.</dd>
+ <dt>proxy-chain-auth</dt>
+ <dd>If the proxy requires authentication, it will read and
+ consume the proxy authentication credentials sent by the client.
+ With <var>proxy-chain-auth</var> it will <em>also</em> forward
+ the credentials to the next proxy in the chain. This may
+ be necessary if you have a chain of proxies that share
+ authentication information. <strong>Security Warning:</strong>
+ Do not set this unless you know you need it, as it forwards
+ sensitive information!</dd>
+ <dt>proxy-sendcl</dt>
+ <dd>HTTP/1.0 required all HTTP requests that include a body
+ (e.g. POST requests) to include a <var>Content-Length</var>
+ header. This environment variable forces the Apache proxy to
+ send this header to the backend server, regardless of what the
+ Client sent to the proxy. It ensures compatibility when
+ proxying for an HTTP/1.0 or unknown backend. However, it
+ may require the entire request to be buffered by the proxy,
+ so it becomes very inefficient for large requests.</dd>
+ <dt>proxy-sendchunks or proxy-sendchunked</dt>
+ <dd>This is the opposite of <var>proxy-sendcl</var>. It allows
+ request bodies to be sent to the backend using chunked transfer
+ encoding. This allows the request to be efficiently streamed,
+ but requires that the backend server supports HTTP/1.1.</dd>
+ <dt>proxy-interim-response</dt>
+ <dd>This variable takes values <code>RFC</code> or
+ <code>Suppress</code>. Earlier httpd versions would suppress
+ HTTP interim (1xx) responses sent from the backend. This is
+ technically a violation of the HTTP protocol. In practice,
+ if a backend sends an interim response, it may itself be
+ extending the protocol in a manner we know nothing about,
+ or just broken. So this is now configurable: set
+ <code>proxy-interim-response RFC</code> to be fully protocol
+ compliant, or <code>proxy-interim-response Suppress</code>
+ to suppress interim responses.</dd>
+ <dt>proxy-initial-not-pooled</dt>
+ <dd>If this variable is set no pooled connection will be reused
+ if the client connection is an initial connection. This avoids
+ the "proxy: error reading status line from remote server" error message
+ caused by the race condition that the backend server closed the
+ pooled connection after the connection check by the proxy and
+ before data sent by the proxy reached the backend. It has to be
+ kept in mind that setting this variable downgrades performance,
+ especially with HTTP/1.0 clients.
+ </dd>
+ </dl>
+</div>
</div>
<div class="bottomlang">
-<p><span>Available Languages: </span><a href="../en/mod/mod_proxy_http.html" title="English"> en </a></p>
+<p><span>Available Languages: </span><a href="../en/mod/mod_proxy_http.html" title="English"> en </a> |
+<a href="../fr/mod/mod_proxy_http.html" hreflang="fr" rel="alternate" title="Français"> fr </a></p>
</div><div id="footer">
-<p class="apache">Copyright
1995-2005 The Apache Software Foundation or its licensors, as applicable.<br />Licensed under the <a href="http://www.apache.org/licenses/LICENSE-2.0">Apache License, Version 2.0</a>.</p>
+<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>
\ No newline at end of file
projects / apache / blobdiff