docs/manual/mod/mod_alias.html.en - httpd - Git at Google

 <?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_alias - 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 2.0</p>
 <img alt="" src="../images/feather.gif" /></div>
 <div class="up"><a href="./"><img title="&lt;-" alt="&lt;-" src="../images/left.gif" /></a></div>
 <div id="path">
 <a href="http://www.apache.org/">Apache</a> &gt; <a href="http://httpd.apache.org/">HTTP Server</a> &gt; <a href="http://httpd.apache.org/docs-project/">Documentation</a> &gt; <a href="../">Version 2.0</a> &gt; <a href="./">Modules</a></div>
 <div id="page-content">
 <div id="preamble"><h1>Apache Module mod_alias</h1>
 <table class="module"><tr><th><a href="module-dict.html#Description">Description:</a></th><td>Provides for mapping different parts of the host
     filesystem in the document tree and for URL redirection</td></tr>
 <tr><th><a href="module-dict.html#Status">Status:</a></th><td>Base</td></tr>
 <tr><th><a href="module-dict.html#ModuleIdentifier">Module Identifier:</a></th><td>alias_module</td></tr>
 <tr><th><a href="module-dict.html#SourceFile">Source File:</a></th><td>mod_alias.c</td></tr></table>
 <h3>Summary</h3>

     <p>The directives contained in this module allow for manipulation
     and control of URLs as requests arrive at the server. The
     <code class="directive"><a href="#alias">Alias</a></code> and <code class="directive"><a href="#scriptalias">ScriptAlias</a></code> directives are used to
     map between URLs and filesystem paths.  This allows for content
     which is not directly under the <code class="directive"><a href="../mod/core.html#documentroot">DocumentRoot</a></code> served as part of the web
     document tree. The <code class="directive"><a href="#scriptalias">ScriptAlias</a></code> directive has the
     additional effect of marking the target directory as containing
     only CGI scripts.</p>

     <p>The <code class="directive"><a href="#redirect">Redirect</a></code>
     directives are used to instruct clients to make a new request with
     a different URL. They are often used when a resource has moved to
     a new location.</p>
 </div>
 <div id="quickview"><h3 class="directives">Directives</h3>
 <ul id="toc">
 <li><img alt="" src="../images/down.gif" /> <a href="#alias">Alias</a></li>
 <li><img alt="" src="../images/down.gif" /> <a href="#aliasmatch">AliasMatch</a></li>
 <li><img alt="" src="../images/down.gif" /> <a href="#redirect">Redirect</a></li>
 <li><img alt="" src="../images/down.gif" /> <a href="#redirectmatch">RedirectMatch</a></li>
 <li><img alt="" src="../images/down.gif" /> <a href="#redirectpermanent">RedirectPermanent</a></li>
 <li><img alt="" src="../images/down.gif" /> <a href="#redirecttemp">RedirectTemp</a></li>
 <li><img alt="" src="../images/down.gif" /> <a href="#scriptalias">ScriptAlias</a></li>
 <li><img alt="" src="../images/down.gif" /> <a href="#scriptaliasmatch">ScriptAliasMatch</a></li>
 </ul>
 <h3>See also</h3>
 <ul class="seealso">
 <li><code class="module"><a href="../mod/mod_rewrite.html">mod_rewrite</a></code></li>
 <li><a href="../urlmapping.html">Mapping URLs to the filesystem</a></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="Alias" id="Alias">Alias</a> <a name="alias" id="alias">Directive</a></h2>
 <table class="directive">
 <tr><th><a href="directive-dict.html#Description">Description:</a></th><td>Maps URLs to filesystem locations</td></tr>
 <tr><th><a href="directive-dict.html#Syntax">Syntax:</a></th><td><code>Alias <var>URL-path</var>
 <var>file-path</var>|<var>directory-path</var></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>Base</td></tr>
 <tr><th><a href="directive-dict.html#Module">Module:</a></th><td>mod_alias</td></tr>
 </table>

     <p>The <code class="directive">Alias</code> directive allows documents to
     be stored in the local filesystem other than under the
     <code class="directive"><a href="../mod/core.html#documentroot">DocumentRoot</a></code>. URLs with a
     (%-decoded) path beginning with <var>url-path</var> will be mapped
     to local files beginning with <var>directory-path</var>.</p>

     <div class="example"><h3>Example:</h3><p><code>
       Alias /image /ftp/pub/image
     </code></p></div>

     <p>A request for http://myserver/image/foo.gif would cause the
     server to return the file /ftp/pub/image/foo.gif.</p>

     <p>Note that if you include a trailing / on the
     <var>url-path</var> then the server will require a trailing / in
     order to expand the alias. That is, if you use <code>Alias
     /icons/ /usr/local/apache/icons/</code> then the url
     <code>/icons</code> will not be aliased.</p>

     <p>Note that you may need to specify additional <code class="directive"><a href="../mod/core.html#directory">&lt;Directory&gt;</a></code> sections which
     cover the <em>destination</em> of aliases.  Aliasing occurs before
     <code class="directive"><a href="../mod/core.html#directory">&lt;Directory&gt;</a></code> sections
     are checked, so only the destination of aliases are affected.
     (Note however <code class="directive"><a href="../mod/core.html#location">&lt;Location&gt;</a></code>
     sections are run through once before aliases are performed, so
     they will apply.)</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="AliasMatch" id="AliasMatch">AliasMatch</a> <a name="aliasmatch" id="aliasmatch">Directive</a></h2>
 <table class="directive">
 <tr><th><a href="directive-dict.html#Description">Description:</a></th><td>Maps URLs to filesystem locations using regular
 expressions</td></tr>
 <tr><th><a href="directive-dict.html#Syntax">Syntax:</a></th><td><code>AliasMatch <var>regex</var>
 <var>file-path</var>|<var>directory-path</var></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>Base</td></tr>
 <tr><th><a href="directive-dict.html#Module">Module:</a></th><td>mod_alias</td></tr>
 </table>
     <p>This directive is equivalent to <code class="directive"><a href="#alias">Alias</a></code>, but makes use of standard
     regular expressions, instead of simple prefix matching. The
     supplied regular expression is matched against the URL-path, and
     if it matches, the server will substitute any parenthesized
     matches into the given string and use it as a filename. For
     example, to activate the <code>/icons</code> directory, one might
     use:</p>

     <div class="example"><p><code>
       AliasMatch ^/icons(.*) /usr/local/apache/icons$1
     </code></p></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="Redirect" id="Redirect">Redirect</a> <a name="redirect" id="redirect">Directive</a></h2>
 <table class="directive">
 <tr><th><a href="directive-dict.html#Description">Description:</a></th><td>Sends an external redirect asking the client to fetch
 a different URL</td></tr>
 <tr><th><a href="directive-dict.html#Syntax">Syntax:</a></th><td><code>Redirect [<var>status</var>] <var>URL-path</var>
 <var>URL</var></code></td></tr>
 <tr><th><a href="directive-dict.html#Context">Context:</a></th><td>server config, virtual host, directory, .htaccess</td></tr>
 <tr><th><a href="directive-dict.html#Override">Override:</a></th><td>FileInfo</td></tr>
 <tr><th><a href="directive-dict.html#Status">Status:</a></th><td>Base</td></tr>
 <tr><th><a href="directive-dict.html#Module">Module:</a></th><td>mod_alias</td></tr>
 </table>
     <p>The Redirect directive maps an old URL into a new one. The
     new URL is returned to the client which attempts to fetch it
     again with the new address. <var>URL-path</var> a (%-decoded)
     path; any requests for documents beginning with this path will
     be returned a redirect error to a new (%-encoded) URL beginning
     with <var>URL</var>.</p>

     <div class="example"><h3>Example:</h3><p><code>
       Redirect /service http://foo2.bar.com/service
     </code></p></div>

     <p>If the client requests http://myserver/service/foo.txt, it
     will be told to access http://foo2.bar.com/service/foo.txt
     instead.</p>

 <div class="note"><h3>Note</h3> <p>Redirect directives take precedence over
 Alias and ScriptAlias directives, irrespective of their ordering in
 the configuration file. Also, <var>URL-path</var> must be an absolute
 path, not a relative path, even when used with .htaccess files or
 inside of <code class="directive"><a href="../mod/core.html#directory">&lt;Directory&gt;</a></code>
 sections.</p></div>

     <p>If no <var>status</var> argument is given, the redirect will
     be "temporary" (HTTP status 302). This indicates to the client
     that the resource has moved temporarily. The <var>status</var>
     argument can be used to return other HTTP status codes:</p>

     <dl>
       <dt>permanent</dt>

       <dd>Returns a permanent redirect status (301) indicating that
       the resource has moved permanently.</dd>

       <dt>temp</dt>

       <dd>Returns a temporary redirect status (302). This is the
       default.</dd>

       <dt>seeother</dt>

       <dd>Returns a "See Other" status (303) indicating that the
       resource has been replaced.</dd>

       <dt>gone</dt>

       <dd>Returns a "Gone" status (410) indicating that the
       resource has been permanently removed. When this status is
       used the <var>URL</var> argument should be omitted.</dd>
     </dl>

     <p>Other status codes can be returned by giving the numeric
     status code as the value of <var>status</var>. If the status is
     between 300 and 399, the <var>URL</var> argument must be present,
     otherwise it must be omitted. Note that the status must be
     known to the Apache code (see the function
     <code>send_error_response</code> in http_protocol.c).</p>

     <div class="example"><h3>Example:</h3><p><code>
       Redirect permanent /one http://example.com/two<br />
       Redirect 303 /three http://example.com/other
     </code></p></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="RedirectMatch" id="RedirectMatch">RedirectMatch</a> <a name="redirectmatch" id="redirectmatch">Directive</a></h2>
 <table class="directive">
 <tr><th><a href="directive-dict.html#Description">Description:</a></th><td>Sends an external redirect based on a regular expression match
 of the current URL</td></tr>
 <tr><th><a href="directive-dict.html#Syntax">Syntax:</a></th><td><code>RedirectMatch [<var>status</var>] <var>regex</var>
 <var>URL</var></code></td></tr>
 <tr><th><a href="directive-dict.html#Context">Context:</a></th><td>server config, virtual host, directory, .htaccess</td></tr>
 <tr><th><a href="directive-dict.html#Override">Override:</a></th><td>FileInfo</td></tr>
 <tr><th><a href="directive-dict.html#Status">Status:</a></th><td>Base</td></tr>
 <tr><th><a href="directive-dict.html#Module">Module:</a></th><td>mod_alias</td></tr>
 </table>
     <p>This directive is equivalent to <code class="directive"><a href="#redirect">Redirect</a></code>, but makes use of standard
     regular expressions, instead of simple prefix matching. The
     supplied regular expression is matched against the URL-path, and
     if it matches, the server will substitute any parenthesized
     matches into the given string and use it as a filename. For
     example, to redirect all GIF files to like-named JPEG files on
     another server, one might use:</p>

     <div class="example"><p><code>
       RedirectMatch (.*)\.gif$ http://www.anotherserver.com$1.jpg
     </code></p></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="RedirectPermanent" id="RedirectPermanent">RedirectPermanent</a> <a name="redirectpermanent" id="redirectpermanent">Directive</a></h2>
 <table class="directive">
 <tr><th><a href="directive-dict.html#Description">Description:</a></th><td>Sends an external permanent redirect asking the client to fetch
 a different URL</td></tr>
 <tr><th><a href="directive-dict.html#Syntax">Syntax:</a></th><td><code>RedirectPermanent <var>URL-path</var> <var>URL</var></code></td></tr>
 <tr><th><a href="directive-dict.html#Context">Context:</a></th><td>server config, virtual host, directory, .htaccess</td></tr>
 <tr><th><a href="directive-dict.html#Override">Override:</a></th><td>FileInfo</td></tr>
 <tr><th><a href="directive-dict.html#Status">Status:</a></th><td>Base</td></tr>
 <tr><th><a href="directive-dict.html#Module">Module:</a></th><td>mod_alias</td></tr>
 </table>
     <p>This directive makes the client know that the Redirect is
     permanent (status 301). Exactly equivalent to <code>Redirect
     permanent</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="RedirectTemp" id="RedirectTemp">RedirectTemp</a> <a name="redirecttemp" id="redirecttemp">Directive</a></h2>
 <table class="directive">
 <tr><th><a href="directive-dict.html#Description">Description:</a></th><td>Sends an external temporary redirect asking the client to fetch
 a different URL</td></tr>
 <tr><th><a href="directive-dict.html#Syntax">Syntax:</a></th><td><code>RedirectTemp <var>URL-path</var> <var>URL</var></code></td></tr>
 <tr><th><a href="directive-dict.html#Context">Context:</a></th><td>server config, virtual host, directory, .htaccess</td></tr>
 <tr><th><a href="directive-dict.html#Override">Override:</a></th><td>FileInfo</td></tr>
 <tr><th><a href="directive-dict.html#Status">Status:</a></th><td>Base</td></tr>
 <tr><th><a href="directive-dict.html#Module">Module:</a></th><td>mod_alias</td></tr>
 </table>
     <p>This directive makes the client know that the Redirect is
     only temporary (status 302). Exactly equivalent to
     <code>Redirect temp</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="ScriptAlias" id="ScriptAlias">ScriptAlias</a> <a name="scriptalias" id="scriptalias">Directive</a></h2>
 <table class="directive">
 <tr><th><a href="directive-dict.html#Description">Description:</a></th><td>Maps a URL to a filesystem location and designates the
 target as a CGI script</td></tr>
 <tr><th><a href="directive-dict.html#Syntax">Syntax:</a></th><td><code>ScriptAlias <var>URL-path</var>
 <var>file-path</var>|<var>directory-path</var></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>Base</td></tr>
 <tr><th><a href="directive-dict.html#Module">Module:</a></th><td>mod_alias</td></tr>
 </table>
     <p>The <code class="directive">ScriptAlias</code> directive has the same
     behavior as the <code class="directive"><a href="#alias">Alias</a></code>
     directive, except that in addition it marks the target directory
     as containing CGI scripts that will be processed by <code class="module"><a href="../mod/mod_cgi.html">mod_cgi</a></code>'s cgi-script handler. URLs with a
     (%-decoded) path beginning with <var>URL-path</var> will be mapped
     to scripts beginning with the second argument which is a full
     pathname in the local filesystem.</p>

     <div class="example"><h3>Example:</h3><p><code>
       ScriptAlias /cgi-bin/ /web/cgi-bin/
     </code></p></div>

     <p>A request for <code>http://myserver/cgi-bin/foo</code> would cause the
     server to run the script <code>/web/cgi-bin/foo</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="ScriptAliasMatch" id="ScriptAliasMatch">ScriptAliasMatch</a> <a name="scriptaliasmatch" id="scriptaliasmatch">Directive</a></h2>
 <table class="directive">
 <tr><th><a href="directive-dict.html#Description">Description:</a></th><td>Maps a URL to a filesystem location using a regular expression
 and designates the target as a CGI script</td></tr>
 <tr><th><a href="directive-dict.html#Syntax">Syntax:</a></th><td><code>ScriptAliasMatch <var>regex</var>
 <var>file-path</var>|<var>directory-path</var></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>Base</td></tr>
 <tr><th><a href="directive-dict.html#Module">Module:</a></th><td>mod_alias</td></tr>
 </table>
     <p>This directive is equivalent to <code class="directive"><a href="#scriptalias">ScriptAlias</a></code>, but makes use of standard
     regular expressions, instead of simple prefix matching. The
     supplied regular expression is matched against the URL-path,
     and if it matches, the server will substitute any parenthesized
     matches into the given string and use it as a filename. For
     example, to activate the standard <code>/cgi-bin</code>, one
     might use:</p>

     <div class="example"><p><code>
       ScriptAliasMatch ^/cgi-bin(.*) /usr/local/apache/cgi-bin$1
     </code></p></div>

 </div>
 </div>
 <div id="footer">
 <p class="apache">Maintained by the <a href="http://httpd.apache.org/docs-project/">Apache HTTP Server Documentation Project</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>
	<?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_alias - 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 2.0</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-project/">Documentation</a> > <a href="../">Version 2.0</a> > <a href="./">Modules</a></div>
	<div id="page-content">
	<div id="preamble"><h1>Apache Module mod_alias</h1>
	<table class="module"><tr><th><a href="module-dict.html#Description">Description:</a></th><td>Provides for mapping different parts of the host
	filesystem in the document tree and for URL redirection</td></tr>
	<tr><th><a href="module-dict.html#Status">Status:</a></th><td>Base</td></tr>
	<tr><th><a href="module-dict.html#ModuleIdentifier">Module Identifier:</a></th><td>alias_module</td></tr>
	<tr><th><a href="module-dict.html#SourceFile">Source File:</a></th><td>mod_alias.c</td></tr></table>
	<h3>Summary</h3>

	<p>The directives contained in this module allow for manipulation
	and control of URLs as requests arrive at the server. The
	<code class="directive"><a href="#alias">Alias</a></code> and <code class="directive"><a href="#scriptalias">ScriptAlias</a></code> directives are used to
	map between URLs and filesystem paths. This allows for content
	which is not directly under the <code class="directive"><a href="../mod/core.html#documentroot">DocumentRoot</a></code> served as part of the web
	document tree. The <code class="directive"><a href="#scriptalias">ScriptAlias</a></code> directive has the
	additional effect of marking the target directory as containing
	only CGI scripts.</p>

	<p>The <code class="directive"><a href="#redirect">Redirect</a></code>
	directives are used to instruct clients to make a new request with
	a different URL. They are often used when a resource has moved to
	a new location.</p>
	</div>
	<div id="quickview"><h3 class="directives">Directives</h3>
	<ul id="toc">
	<li><img alt="" src="../images/down.gif" /> <a href="#alias">Alias</a></li>
	<li><img alt="" src="../images/down.gif" /> <a href="#aliasmatch">AliasMatch</a></li>
	<li><img alt="" src="../images/down.gif" /> <a href="#redirect">Redirect</a></li>
	<li><img alt="" src="../images/down.gif" /> <a href="#redirectmatch">RedirectMatch</a></li>
	<li><img alt="" src="../images/down.gif" /> <a href="#redirectpermanent">RedirectPermanent</a></li>
	<li><img alt="" src="../images/down.gif" /> <a href="#redirecttemp">RedirectTemp</a></li>
	<li><img alt="" src="../images/down.gif" /> <a href="#scriptalias">ScriptAlias</a></li>
	<li><img alt="" src="../images/down.gif" /> <a href="#scriptaliasmatch">ScriptAliasMatch</a></li>
	</ul>
	<h3>See also</h3>
	<ul class="seealso">
	<li><code class="module"><a href="../mod/mod_rewrite.html">mod_rewrite</a></code></li>
	<li><a href="../urlmapping.html">Mapping URLs to the filesystem</a></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="Alias" id="Alias">Alias</a> <a name="alias" id="alias">Directive</a></h2>
	<table class="directive">
	<tr><th><a href="directive-dict.html#Description">Description:</a></th><td>Maps URLs to filesystem locations</td></tr>
	<tr><th><a href="directive-dict.html#Syntax">Syntax:</a></th><td><code>Alias <var>URL-path</var>
	<var>file-path</var>\|<var>directory-path</var></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>Base</td></tr>
	<tr><th><a href="directive-dict.html#Module">Module:</a></th><td>mod_alias</td></tr>
	</table>

	<p>The <code class="directive">Alias</code> directive allows documents to
	be stored in the local filesystem other than under the
	<code class="directive"><a href="../mod/core.html#documentroot">DocumentRoot</a></code>. URLs with a
	(%-decoded) path beginning with <var>url-path</var> will be mapped
	to local files beginning with <var>directory-path</var>.</p>

	<div class="example"><h3>Example:</h3><p><code>
	Alias /image /ftp/pub/image
	</code></p></div>

	<p>A request for http://myserver/image/foo.gif would cause the
	server to return the file /ftp/pub/image/foo.gif.</p>

	<p>Note that if you include a trailing / on the
	<var>url-path</var> then the server will require a trailing / in
	order to expand the alias. That is, if you use <code>Alias
	/icons/ /usr/local/apache/icons/</code> then the url
	<code>/icons</code> will not be aliased.</p>

	<p>Note that you may need to specify additional <code class="directive"><a href="../mod/core.html#directory"><Directory></a></code> sections which
	cover the <em>destination</em> of aliases. Aliasing occurs before
	<code class="directive"><a href="../mod/core.html#directory"><Directory></a></code> sections
	are checked, so only the destination of aliases are affected.
	(Note however <code class="directive"><a href="../mod/core.html#location"><Location></a></code>
	sections are run through once before aliases are performed, so
	they will apply.)</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="AliasMatch" id="AliasMatch">AliasMatch</a> <a name="aliasmatch" id="aliasmatch">Directive</a></h2>
	<table class="directive">
	<tr><th><a href="directive-dict.html#Description">Description:</a></th><td>Maps URLs to filesystem locations using regular
	expressions</td></tr>
	<tr><th><a href="directive-dict.html#Syntax">Syntax:</a></th><td><code>AliasMatch <var>regex</var>
	<var>file-path</var>\|<var>directory-path</var></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>Base</td></tr>
	<tr><th><a href="directive-dict.html#Module">Module:</a></th><td>mod_alias</td></tr>
	</table>
	<p>This directive is equivalent to <code class="directive"><a href="#alias">Alias</a></code>, but makes use of standard
	regular expressions, instead of simple prefix matching. The
	supplied regular expression is matched against the URL-path, and
	if it matches, the server will substitute any parenthesized
	matches into the given string and use it as a filename. For
	example, to activate the <code>/icons</code> directory, one might
	use:</p>

	<div class="example"><p><code>
	AliasMatch ^/icons(.*) /usr/local/apache/icons$1
	</code></p></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="Redirect" id="Redirect">Redirect</a> <a name="redirect" id="redirect">Directive</a></h2>
	<table class="directive">
	<tr><th><a href="directive-dict.html#Description">Description:</a></th><td>Sends an external redirect asking the client to fetch
	a different URL</td></tr>
	<tr><th><a href="directive-dict.html#Syntax">Syntax:</a></th><td><code>Redirect [<var>status</var>] <var>URL-path</var>
	<var>URL</var></code></td></tr>
	<tr><th><a href="directive-dict.html#Context">Context:</a></th><td>server config, virtual host, directory, .htaccess</td></tr>
	<tr><th><a href="directive-dict.html#Override">Override:</a></th><td>FileInfo</td></tr>
	<tr><th><a href="directive-dict.html#Status">Status:</a></th><td>Base</td></tr>
	<tr><th><a href="directive-dict.html#Module">Module:</a></th><td>mod_alias</td></tr>
	</table>
	<p>The Redirect directive maps an old URL into a new one. The
	new URL is returned to the client which attempts to fetch it
	again with the new address. <var>URL-path</var> a (%-decoded)
	path; any requests for documents beginning with this path will
	be returned a redirect error to a new (%-encoded) URL beginning
	with <var>URL</var>.</p>

	<div class="example"><h3>Example:</h3><p><code>
	Redirect /service http://foo2.bar.com/service
	</code></p></div>

	<p>If the client requests http://myserver/service/foo.txt, it
	will be told to access http://foo2.bar.com/service/foo.txt
	instead.</p>

	<div class="note"><h3>Note</h3> <p>Redirect directives take precedence over
	Alias and ScriptAlias directives, irrespective of their ordering in
	the configuration file. Also, <var>URL-path</var> must be an absolute
	path, not a relative path, even when used with .htaccess files or
	inside of <code class="directive"><a href="../mod/core.html#directory"><Directory></a></code>
	sections.</p></div>

	<p>If no <var>status</var> argument is given, the redirect will
	be "temporary" (HTTP status 302). This indicates to the client
	that the resource has moved temporarily. The <var>status</var>
	argument can be used to return other HTTP status codes:</p>

	<dl>
	<dt>permanent</dt>

	<dd>Returns a permanent redirect status (301) indicating that
	the resource has moved permanently.</dd>

	<dt>temp</dt>

	<dd>Returns a temporary redirect status (302). This is the
	default.</dd>

	<dt>seeother</dt>

	<dd>Returns a "See Other" status (303) indicating that the
	resource has been replaced.</dd>

	<dt>gone</dt>

	<dd>Returns a "Gone" status (410) indicating that the
	resource has been permanently removed. When this status is
	used the <var>URL</var> argument should be omitted.</dd>
	</dl>

	<p>Other status codes can be returned by giving the numeric
	status code as the value of <var>status</var>. If the status is
	between 300 and 399, the <var>URL</var> argument must be present,
	otherwise it must be omitted. Note that the status must be
	known to the Apache code (see the function
	<code>send_error_response</code> in http_protocol.c).</p>

	<div class="example"><h3>Example:</h3><p><code>
	Redirect permanent /one http://example.com/two<br />
	Redirect 303 /three http://example.com/other
	</code></p></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="RedirectMatch" id="RedirectMatch">RedirectMatch</a> <a name="redirectmatch" id="redirectmatch">Directive</a></h2>
	<table class="directive">
	<tr><th><a href="directive-dict.html#Description">Description:</a></th><td>Sends an external redirect based on a regular expression match
	of the current URL</td></tr>
	<tr><th><a href="directive-dict.html#Syntax">Syntax:</a></th><td><code>RedirectMatch [<var>status</var>] <var>regex</var>
	<var>URL</var></code></td></tr>
	<tr><th><a href="directive-dict.html#Context">Context:</a></th><td>server config, virtual host, directory, .htaccess</td></tr>
	<tr><th><a href="directive-dict.html#Override">Override:</a></th><td>FileInfo</td></tr>
	<tr><th><a href="directive-dict.html#Status">Status:</a></th><td>Base</td></tr>
	<tr><th><a href="directive-dict.html#Module">Module:</a></th><td>mod_alias</td></tr>
	</table>
	<p>This directive is equivalent to <code class="directive"><a href="#redirect">Redirect</a></code>, but makes use of standard
	regular expressions, instead of simple prefix matching. The
	supplied regular expression is matched against the URL-path, and
	if it matches, the server will substitute any parenthesized
	matches into the given string and use it as a filename. For
	example, to redirect all GIF files to like-named JPEG files on
	another server, one might use:</p>

	<div class="example"><p><code>
	RedirectMatch (.*)\.gif$ http://www.anotherserver.com$1.jpg
	</code></p></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="RedirectPermanent" id="RedirectPermanent">RedirectPermanent</a> <a name="redirectpermanent" id="redirectpermanent">Directive</a></h2>
	<table class="directive">
	<tr><th><a href="directive-dict.html#Description">Description:</a></th><td>Sends an external permanent redirect asking the client to fetch
	a different URL</td></tr>
	<tr><th><a href="directive-dict.html#Syntax">Syntax:</a></th><td><code>RedirectPermanent <var>URL-path</var> <var>URL</var></code></td></tr>
	<tr><th><a href="directive-dict.html#Context">Context:</a></th><td>server config, virtual host, directory, .htaccess</td></tr>
	<tr><th><a href="directive-dict.html#Override">Override:</a></th><td>FileInfo</td></tr>
	<tr><th><a href="directive-dict.html#Status">Status:</a></th><td>Base</td></tr>
	<tr><th><a href="directive-dict.html#Module">Module:</a></th><td>mod_alias</td></tr>
	</table>
	<p>This directive makes the client know that the Redirect is
	permanent (status 301). Exactly equivalent to <code>Redirect
	permanent</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="RedirectTemp" id="RedirectTemp">RedirectTemp</a> <a name="redirecttemp" id="redirecttemp">Directive</a></h2>
	<table class="directive">
	<tr><th><a href="directive-dict.html#Description">Description:</a></th><td>Sends an external temporary redirect asking the client to fetch
	a different URL</td></tr>
	<tr><th><a href="directive-dict.html#Syntax">Syntax:</a></th><td><code>RedirectTemp <var>URL-path</var> <var>URL</var></code></td></tr>
	<tr><th><a href="directive-dict.html#Context">Context:</a></th><td>server config, virtual host, directory, .htaccess</td></tr>
	<tr><th><a href="directive-dict.html#Override">Override:</a></th><td>FileInfo</td></tr>
	<tr><th><a href="directive-dict.html#Status">Status:</a></th><td>Base</td></tr>
	<tr><th><a href="directive-dict.html#Module">Module:</a></th><td>mod_alias</td></tr>
	</table>
	<p>This directive makes the client know that the Redirect is
	only temporary (status 302). Exactly equivalent to
	<code>Redirect temp</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="ScriptAlias" id="ScriptAlias">ScriptAlias</a> <a name="scriptalias" id="scriptalias">Directive</a></h2>
	<table class="directive">
	<tr><th><a href="directive-dict.html#Description">Description:</a></th><td>Maps a URL to a filesystem location and designates the
	target as a CGI script</td></tr>
	<tr><th><a href="directive-dict.html#Syntax">Syntax:</a></th><td><code>ScriptAlias <var>URL-path</var>
	<var>file-path</var>\|<var>directory-path</var></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>Base</td></tr>
	<tr><th><a href="directive-dict.html#Module">Module:</a></th><td>mod_alias</td></tr>
	</table>
	<p>The <code class="directive">ScriptAlias</code> directive has the same
	behavior as the <code class="directive"><a href="#alias">Alias</a></code>
	directive, except that in addition it marks the target directory
	as containing CGI scripts that will be processed by <code class="module"><a href="../mod/mod_cgi.html">mod_cgi</a></code>'s cgi-script handler. URLs with a
	(%-decoded) path beginning with <var>URL-path</var> will be mapped
	to scripts beginning with the second argument which is a full
	pathname in the local filesystem.</p>

	<div class="example"><h3>Example:</h3><p><code>
	ScriptAlias /cgi-bin/ /web/cgi-bin/
	</code></p></div>

	<p>A request for <code>http://myserver/cgi-bin/foo</code> would cause the
	server to run the script <code>/web/cgi-bin/foo</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="ScriptAliasMatch" id="ScriptAliasMatch">ScriptAliasMatch</a> <a name="scriptaliasmatch" id="scriptaliasmatch">Directive</a></h2>
	<table class="directive">
	<tr><th><a href="directive-dict.html#Description">Description:</a></th><td>Maps a URL to a filesystem location using a regular expression
	and designates the target as a CGI script</td></tr>
	<tr><th><a href="directive-dict.html#Syntax">Syntax:</a></th><td><code>ScriptAliasMatch <var>regex</var>
	<var>file-path</var>\|<var>directory-path</var></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>Base</td></tr>
	<tr><th><a href="directive-dict.html#Module">Module:</a></th><td>mod_alias</td></tr>
	</table>
	<p>This directive is equivalent to <code class="directive"><a href="#scriptalias">ScriptAlias</a></code>, but makes use of standard
	regular expressions, instead of simple prefix matching. The
	supplied regular expression is matched against the URL-path,
	and if it matches, the server will substitute any parenthesized
	matches into the given string and use it as a filename. For
	example, to activate the standard <code>/cgi-bin</code>, one
	might use:</p>

	<div class="example"><p><code>
	ScriptAliasMatch ^/cgi-bin(.*) /usr/local/apache/cgi-bin$1
	</code></p></div>

	</div>
	</div>
	<div id="footer">
	<p class="apache">Maintained by the <a href="http://httpd.apache.org/docs-project/">Apache HTTP Server Documentation Project</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>