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8 <title>Apache mod_rewrite - Apache HTTP Server</title>
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15 <p class="apache">Apache HTTP Server Version 2.3</p>
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17 <div class="up"><a href="../"><img title="<-" alt="<-" src="../images/left.gif" /></a></div>
19 <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></div><div id="page-content"><div id="preamble"><h1>Apache mod_rewrite</h1>
21 <p><span>Available Languages: </span><a href="../en/rewrite/" title="English"> en </a></p>
25 <p>``The great thing about mod_rewrite is it gives you
26 all the configurability and flexibility of Sendmail.
27 The downside to mod_rewrite is that it gives you all
28 the configurability and flexibility of Sendmail.''</p>
30 <p class="cite">-- <cite>Brian Behlendorf</cite><br />
36 <p>``Despite the tons of examples and docs,
37 mod_rewrite is voodoo. Damned cool voodoo, but still
40 <p class="cite">-- <cite>Brian Moore</cite><br />
45 <p>Welcome to mod_rewrite, the Swiss Army Knife of URL
48 <p>This module uses a rule-based rewriting engine (based on a
49 regular-expression parser) to rewrite requested URLs on the
50 fly. It supports an unlimited number of rules and an
51 unlimited number of attached rule conditions for each rule to
52 provide a really flexible and powerful URL manipulation
53 mechanism. The URL manipulations can depend on various tests,
54 for instance server variables, environment variables, HTTP
55 headers, time stamps and even external database lookups in
56 various formats can be used to achieve granular URL
59 <p>This module operates on the full URLs (including the
60 path-info part) both in per-server context
61 (<code>httpd.conf</code>) and per-directory context
62 (<code>.htaccess</code>) and can even generate query-string
63 parts on result. The rewritten result can lead to internal
64 sub-processing, external request redirection or even to an
65 internal proxy throughput.</p>
67 <p>But all this functionality and flexibility has its
68 drawback: complexity. So don't expect to understand this
69 entire module in just one day.</p>
72 <div id="quickview"><h3>See also</h3><ul class="seealso"><li><a href="../mod/mod_rewrite.html">mod_rewrite reference
73 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 -
74 advanced useful examples</a></li></ul></div>
75 <div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div>
77 <h2><a name="documentation" id="documentation">Documentation</a></h2>
79 <li><a href="../mod/mod_rewrite.html">mod_rewrite reference
80 documentation</a></li>
81 <li><a href="rewrite_intro.html">Introduction</a></li>
82 <li><a href="rewrite_tech.html">Technical details</a></li>
83 <li><a href="rewrite_guide.html">Rewrite Guide - useful examples</a></li>
84 <li><a href="rewrite_guide_advanced.html">Advanced Rewrite Guide - more
85 useful examples</a></li>
86 <li><a href="../glossary.html">Glossary</a></li>
89 <div class="bottomlang">
90 <p><span>Available Languages: </span><a href="../en/rewrite/" title="English"> en </a></p>
91 </div><div id="footer">
92 <p class="apache">Copyright 2006 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>
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