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<title>Apache mod_rewrite</title>
<summary>
- <blockquote>
- <p>``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.''</p>
-
- <p class="cite">-- <cite>Brian Behlendorf</cite><br />
- Apache Group</p>
-
- </blockquote>
-
- <blockquote>
- <p>``Despite the tons of examples and docs,
- mod_rewrite is voodoo. Damned cool voodoo, but still
- voodoo.''</p>
- <p class="cite">-- <cite>Brian Moore</cite><br />
- bem@news.cmc.net</p>
+ <p><module>mod_rewrite</module> 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>
- </blockquote>
-
- <p>Welcome to mod_rewrite, the Swiss Army Knife of URL
- manipulation!</p>
-
- <p>This module uses a rule-based rewriting engine (based on a
- regular-expression parser) to rewrite requested URLs on the
- fly. It supports an unlimited number of rules and an
+ <p>It supports an unlimited number of rules and an
unlimited number of attached rule conditions for each rule to
provide a really flexible and powerful URL manipulation
- mechanism. The URL manipulations can depend on various tests,
- for instance server variables, environment variables, HTTP
- headers, time stamps and even external database lookups in
- various formats can be used to achieve granular URL
+ mechanism. The URL manipulations can depend on various tests:
+ server variables, environment variables, HTTP
+ headers, time stamps, external database lookups, and various other
+ external programs or handlers, can be used to achieve granular URL
matching.</p>
- <p>This module operates on the full URLs (including the
- path-info part) both in per-server context
- (<code>httpd.conf</code>) and per-directory context
- (<code>.htaccess</code>) and can even generate query-string
- parts on result. The rewritten result can lead to internal
- sub-processing, external request redirection or even to an
- internal proxy throughput.</p>
-
- <p>But all this functionality and flexibility has its
- drawback: complexity. So don't expect to understand this
- entire module in just one day.</p>
-
-</summary>
+ <p>Rewrite rules can operate on the full URLs, including the path-info
+ and query string portions, and may be used in per-server context
+ (<code>httpd.conf</code>), per-virtualhost context (<directive
+ type="section" module="core">VirtualHost</directive> blocks), or
+ per-directory context (<code>.htaccess</code> files and <directive
+ type="section" module="core">Directory</directive> blocks). The
+ rewritten result can lead to further rules, internal
+ sub-processing, external request redirection, or proxy
+ passthrough, depending on what <a href="flags.html">flags</a> you
+ attach to the rules.</p>
+
+ <p>Since mod_rewrite is so powerful, it can indeed be rather
+ complex. This document supplements the <a
+ href="../mod/mod_rewrite.html">reference documentation</a>, and
+ attempts to allay some of that complexity, and provide highly
+ annotated examples of common scenarios that you may handle with
+ mod_rewrite. But we also attempt to show you when you should not
+ use mod_rewrite, and use other standard Apache features instead,
+ thus avoiding this unnecessary complexity.</p>
-<seealso><a href="../mod/mod_rewrite.html">mod_rewrite reference
-documentation</a></seealso>
-<seealso><a href="rewrite_intro.html">Introduction</a></seealso>
-<seealso><a href="rewrite_tech.html">Technical details</a></seealso>
-<seealso><a href="rewrite_guide.html">Rewrite Guide - useful examples</a></seealso>
-<seealso><a href="rewrite_guide_advanced.html">Advanced Rewrite Guide -
-advanced useful examples</a></seealso>
-<section id="documentation"><title>Documentation</title>
<ul>
<li><a href="../mod/mod_rewrite.html">mod_rewrite reference
documentation</a></li>
-<li><a href="rewrite_intro.html">Introduction</a></li>
-<li><a href="rewrite_tech.html">Technical details</a></li>
-<li><a href="rewrite_guide.html">Rewrite Guide - useful examples</a></li>
-<li><a href="rewrite_guide_advanced.html">Advanced Rewrite Guide - more
-useful examples</a></li>
-<li><a href="../glossary.html">Glossary</a></li>
+<li><a href="intro.html">Introduction to regular expressions and mod_rewrite</a></li>
+<li><a href="flags.html">RewriteRule Flags</a></li>
+<li><a href="rewritemap.html">Using RewriteMap</a></li>
+<li><a href="avoid.html">When <strong>NOT</strong> to use mod_rewrite</a></li>
+<li><a href="remapping.html">Using mod_rewrite for redirection and remapping of URLs</a></li>
+<li><a href="access.html">Using mod_rewrite to control access</a></li>
+<li><a href="vhosts.html">Dynamic virtual hosts with mod_rewrite</a></li>
+<li><a href="proxy.html">Dynamic proxying with mod_rewrite</a></li>
+<li><a href="advanced.html">Advanced techniques</a></li>
+<li><a href="tech.html">Technical details</a></li>
</ul>
-</section>
+</summary>
-</manualpage>
+<seealso><a href="../mod/mod_rewrite.html">mod_rewrite reference
+documentation</a></seealso>
+<seealso><a href="../urlmapping.html">Mapping URLs to the Filesystem</a></seealso>
+<seealso><a href="http://wiki.apache.org/httpd/Rewrite">mod_rewrite
+wiki</a></seealso>
+<seealso><a href="../glossary.html">Glossary</a></seealso>
+</manualpage>
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