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<title>Guide to Apache mod_rewrite - Apache HTTP Server Version 2.4</title>
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<p class="menu"><a href="../mod/">Modules</a> | <a href="../mod/quickreference.html">Directives</a> | <a href="https://cwiki.apache.org/confluence/display/httpd/FAQ">FAQ</a> | <a href="../glossary.html">Glossary</a> | <a href="../sitemap.html">Sitemap</a> | <a href="https://bz.apache.org/bugzilla/enter_bug.cgi?product=Apache%20httpd-2">Report a bug</a></p>
<p class="apache">Apache HTTP Server Version 2.4</p>
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<a href="https://www.apache.org/">Apache</a> > <a href="https://httpd.apache.org/">HTTP Server</a> > <a href="https://httpd.apache.org/docs/">Documentation</a> > <a href="../">Version 2.4</a></div><div id="page-content"><div id="preamble"><h1>Guide to Apache mod_rewrite</h1>
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<p><span>Available Languages: </span><a href="../en/rewrite/" title="English"> en </a> |
<a href="../fr/rewrite/" hreflang="fr" rel="alternate" title="Français"> fr </a> |
<a href="../tr/rewrite/" hreflang="tr" rel="alternate" title="Türkçe"> tr </a> |
<a href="../zh-cn/rewrite/" hreflang="zh-cn" rel="alternate" title="Simplified Chinese"> zh-cn </a></p>
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<p><em>The great thing about mod_rewrite is it gives you all the
configurability and flexibility of Sendmail. The downside to
mod_rewrite is that it gives you all the configurability and
flexibility of Sendmail.</em>
-- Brian Behlendorf</p>
<p><em>Despite the tons of examples and docs, mod_rewrite is voodoo.
Damned cool voodoo, but still voodoo.</em>
-- Brian Moore</p>
<p><code class="module"><a href="../mod/mod_rewrite.html">mod_rewrite</a></code> provides a way to modify incoming
URL requests, dynamically, based on <a href="intro.html#regex">regular
expression</a> rules. This allows you to map arbitrary URLs onto
your internal URL structure in any way you like.</p>
<p>This guide supplements <a href="../mod/mod_rewrite.html">the
reference manual</a> with annotated examples, conceptual
explanations, and practical advice. It is organized as follows:</p>
<dl>
<dt><a href="intro.html">Introduction</a></dt>
<dd>Core concepts: regular expression syntax, RewriteRule and
RewriteCond basics, and how mod_rewrite fits into the request
processing lifecycle.</dd>
<dt><a href="htaccess.html">Per-directory Rewrites</a></dt>
<dd>The key differences between using rewrite rules in server
configuration versus <a class="glossarylink" href="../glossary.html#perdirectory" title="see glossary">per-directory</a>
context, including path stripping, RewriteBase, and the looping behavior
of the [L] flag.</dd>
<dt><a href="flags.html">RewriteRule Flags</a></dt>
<dd>A complete reference for all flags that can modify the behavior of
a RewriteRule, with examples for each.</dd>
<dt><a href="rewritemap.html">Using RewriteMap</a></dt>
<dd>How to use external lookup sources — text files, DBM databases,
SQL queries, and internal functions — to drive your rewrite
rules.</dd>
<dt><a href="remapping.html">Redirection and Remapping</a></dt>
<dd>Recipes for common tasks: HTTPS redirection, canonical hostnames,
trailing slash normalization, front-controller routing, and more.</dd>
<dt><a href="vhosts.html">Dynamic Virtual Hosts</a></dt>
<dd>Using mod_rewrite to dynamically map hostnames to document roots
without individual VirtualHost blocks.</dd>
<dt><a href="avoid.html">When NOT to use mod_rewrite</a></dt>
<dd>Many common tasks are better accomplished with simpler directives.
This document shows the alternatives and when to prefer them.</dd>
<dt><a href="tech.html">Technical Details</a></dt>
<dd>How mod_rewrite hooks into the Apache request processing phases,
and the order in which rules and conditions are evaluated.</dd>
</dl>
</div>
<div id="quickview"><h3>See also</h3><ul class="seealso"><li><a href="../mod/mod_rewrite.html">mod_rewrite Reference Documentation</a></li><li><a href="../urlmapping.html">Mapping URLs to the Filesystem</a></li><li><a href="https://cwiki.apache.org/confluence/display/httpd/Rewrite">mod_rewrite
wiki</a></li><li><a href="../glossary.html">Glossary</a></li></ul></div>
</div>
<div class="bottomlang">
<p><span>Available Languages: </span><a href="../en/rewrite/" title="English"> en </a> |
<a href="../fr/rewrite/" hreflang="fr" rel="alternate" title="Français"> fr </a> |
<a href="../tr/rewrite/" hreflang="tr" rel="alternate" title="Türkçe"> tr </a> |
<a href="../zh-cn/rewrite/" hreflang="zh-cn" rel="alternate" title="Simplified Chinese"> zh-cn </a></p>
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