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      <h3>Apache HTTP Server Version 1.3</h3>
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    <h1 align="CENTER">Module mod_alias</h1>

    <p>This module provides for mapping different parts of the host
    filesystem in the document tree, and for URL redirection.</p>

    <p><a href="module-dict.html#Status"
    rel="Help"><strong>Status:</strong></a> Base<br />
     <a href="module-dict.html#SourceFile"
    rel="Help"><strong>Source File:</strong></a> mod_alias.c<br />
     <a href="module-dict.html#ModuleIdentifier"
    rel="Help"><strong>Module Identifier:</strong></a>
    alias_module</p>

    <h2>Summary</h2>

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

    <p>The <code>Redirect</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>

    <p>A more powerful and flexible set of directives for
    manipulating URLs is contained in the <a
    href="mod_rewrite.html"><code>mod_rewrite</code></a>
    module.</p>

    <h2>Directives</h2>

    <ul>
      <li><a href="#alias">Alias</a></li>

      <li><a href="#aliasmatch">AliasMatch</a></li>

      <li><a href="#redirect">Redirect</a></li>

      <li><a href="#redirectmatch">RedirectMatch</a></li>

      <li><a href="#redirecttemp">RedirectTemp</a></li>

      <li><a href="#redirectperm">RedirectPermanent</a></li>

      <li><a href="#scriptalias">ScriptAlias</a></li>

      <li><a href="#scriptaliasmatch">ScriptAliasMatch</a></li>
    </ul>
    <hr />

    <h2><a id="alias" name="alias">Alias directive</a></h2>

    <p>
     <a href="directive-dict.html#Syntax"
    rel="Help"><strong>Syntax:</strong></a> Alias <em>URL-path
    file-path</em>|<em>directory-path</em><br />
     <a href="directive-dict.html#Context"
    rel="Help"><strong>Context:</strong></a> server config, virtual
    host<br />
     <a href="directive-dict.html#Status"
    rel="Help"><strong>Status:</strong></a> Base<br />
     <a href="directive-dict.html#Module"
    rel="Help"><strong>Module:</strong></a> mod_alias</p>

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

    <p>Example:</p>

    <blockquote>
      <code>Alias /image /ftp/pub/image</code>
    </blockquote>

    <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
    <em>url-path</em> 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 <a
    href="core.html#directory"><code>&lt;Directory&gt;</code></a>
    sections which cover the <em>destination</em> of aliases.
    Aliasing occurs before <code>&lt;Directory&gt;</code> sections
    are checked, so only the destination of aliases are affected.
    (Note however <a
    href="core.html#location"><code>&lt;Location&gt;</code></a>
    sections are run through once before aliases are performed, so
    they will apply.)</p>

    <p>See also <a href="#scriptalias">ScriptAlias</a>.</p>
    <hr />

    <h2><a id="aliasmatch" name="aliasmatch">AliasMatch</a></h2>

    <p><a href="directive-dict.html#Syntax"
    rel="Help"><strong>Syntax:</strong></a> AliasMatch <em>regex
    file-path</em>|<em>directory-path</em><br />
     <a href="directive-dict.html#Context"
    rel="Help"><strong>Context:</strong></a> server config, virtual
    host<br />
     <a href="directive-dict.html#Status"
    rel="Help"><strong>Status:</strong></a> Base<br />
     <a href="directive-dict.html#Module"
    rel="Help"><strong>Module:</strong></a> mod_alias<br />
     <a href="directive-dict.html#Compatibility"
    rel="Help"><strong>Compatibility:</strong></a> Available in
    Apache 1.3 and later</p>

    <p>This directive is equivalent to <a href="#alias">Alias</a>,
    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>
<pre>
    AliasMatch ^/icons(.*) /usr/local/apache/icons$1
</pre>
    <hr />

    <h2><a id="redirect" name="redirect">Redirect
    directive</a></h2>

    <p>
     <a href="directive-dict.html#Syntax"
    rel="Help"><strong>Syntax:</strong></a> Redirect
    [<em>status</em>] <em>URL-path URL</em><br />
     <a href="directive-dict.html#Context"
    rel="Help"><strong>Context:</strong></a> server config, virtual
    host, directory, .htaccess<br />
     <a href="directive-dict.html#Override"
    rel="Help"><strong>Override:</strong></a> FileInfo<br />
     <a href="directive-dict.html#Status"
    rel="Help"><strong>Status:</strong></a> Base<br />
     <a href="directive-dict.html#Module"
    rel="Help"><strong>Module:</strong></a> mod_alias<br />
     <a href="directive-dict.html#Compatibility"
    rel="Help"><strong>Compatibility:</strong></a> The directory
    and .htaccess context's are only available in versions 1.1 and
    later. The <em>status</em> argument is only available in Apache
    1.2 or later.</p>

    <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. <em>URL-path</em> a (%-decoded)
    path; any requests for documents beginning with this path will
    be returned a redirect error to a new (%-encoded) URL beginning
    with <em>URL</em>.</p>

    <p>Example:</p>

    <blockquote>
      <code>Redirect /service http://foo2.bar.com/service</code>
    </blockquote>

    <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>

    <p><strong>Note:</strong> Redirect directives take precedence
    over Alias and ScriptAlias directives, irrespective of their
    ordering in the configuration file. Also, <em>URL-path</em>
    must be an absolute path, not a relative path, even when used
    with .htaccess files or inside of &lt;Directory&gt;
    sections.</p>

    <p>If no <em>status</em> argument is given, the redirect will
    be "temporary" (HTTP status 302). This indicates to the client
    that the resource has moved temporarily. The <em>status</em>
    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 <em>url</em> argument should be omitted.</dd>
    </dl>

    <p>Other status codes can be returned by giving the numeric
    status code as the value of <em>status</em>. If the status is
    between 300 and 399, the <em>url</em> 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>

    <p>Example:</p>

    <pre>
    Redirect permanent /one http://example.com/two<br />
    Redirect 303 /two http://example.com/other
    </pre>
    <hr />

    <h2><a id="redirectmatch"
    name="redirectmatch">RedirectMatch</a></h2>

    <p><a href="directive-dict.html#Syntax"
    rel="Help"><strong>Syntax:</strong></a> RedirectMatch
    [<em>status</em>] <em>regex URL</em><br />
     <a href="directive-dict.html#Context"
    rel="Help"><strong>Context:</strong></a> server config, virtual
    host, directory, .htaccess<br />
     <a href="directive-dict.html#Override"
    rel="Help"><strong>Override:</strong></a> FileInfo<br />
     <a href="directive-dict.html#Status"
    rel="Help"><strong>Status:</strong></a> Base<br />
     <a href="directive-dict.html#Module"
    rel="Help"><strong>Module:</strong></a> mod_alias<br />
     <a href="directive-dict.html#Compatibility"
    rel="Help"><strong>Compatibility:</strong></a> Available in
    Apache 1.3 and later</p>

    <p>This directive is equivalent to <a
    href="#redirect">Redirect</a>, 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>
<pre>
    RedirectMatch (.*)\.gif$ http://www.anotherserver.com$1.jpg
</pre>
    <hr />

    <h2><a id="redirecttemp" name="redirecttemp">RedirectTemp
    directive</a></h2>

    <p>
     <a href="directive-dict.html#Syntax"
    rel="Help"><strong>Syntax:</strong></a> RedirectTemp
    <em>URL-path URL</em><br />
     <a href="directive-dict.html#Context"
    rel="Help"><strong>Context:</strong></a> server config, virtual
    host, directory, .htaccess<br />
     <a href="directive-dict.html#Override"
    rel="Help"><strong>Override:</strong></a> FileInfo<br />
     <a href="directive-dict.html#Status"
    rel="Help"><strong>Status:</strong></a> Base<br />
     <a href="directive-dict.html#Module"
    rel="Help"><strong>Module:</strong></a> mod_alias<br />
     <a href="directive-dict.html#Compatibility"
    rel="Help"><strong>Compatibility:</strong></a> This directive
    is only available in Apache 1.2 and later</p>

    <p>This directive makes the client know that the Redirect is
    only temporary (status 302). Exactly equivalent to
    <code>Redirect temp</code>.</p>
    <hr />

    <h2><a id="redirectperm" name="redirectperm">RedirectPermanent
    directive</a></h2>

    <p>
     <a href="directive-dict.html#Syntax"
    rel="Help"><strong>Syntax:</strong></a> RedirectPermanent
    <em>URL-path URL</em><br />
     <a href="directive-dict.html#Context"
    rel="Help"><strong>Context:</strong></a> server config, virtual
    host, directory, .htaccess<br />
     <a href="directive-dict.html#Override"
    rel="Help"><strong>Override:</strong></a> FileInfo<br />
     <a href="directive-dict.html#Status"
    rel="Help"><strong>Status:</strong></a> Base<br />
     <a href="directive-dict.html#Module"
    rel="Help"><strong>Module:</strong></a> mod_alias<br />
     <a href="directive-dict.html#Compatibility"
    rel="Help"><strong>Compatibility:</strong></a> This directive
    is only available in Apache 1.2 and later</p>

    <p>This directive makes the client know that the Redirect is
    permanent (status 301). Exactly equivalent to <code>Redirect
    permanent</code>.</p>
    <hr />

    <h2><a id="scriptalias" name="scriptalias">ScriptAlias
    directive</a></h2>

    <p>
     <a href="directive-dict.html#Syntax"
    rel="Help"><strong>Syntax:</strong></a> ScriptAlias
    <em>URL-path file-path</em>|<em>directory-path</em><br />
     <a href="directive-dict.html#Context"
    rel="Help"><strong>Context:</strong></a> server config, virtual
    host<br />
     <a href="directive-dict.html#Status"
    rel="Help"><strong>Status:</strong></a> Base<br />
     <a href="directive-dict.html#Module"
    rel="Help"><strong>Module:</strong></a> mod_alias</p>

    <p>The ScriptAlias directive has the same behavior as the <a
    href="#alias">Alias</a> directive, except that in addition it
    marks the target directory as containing CGI scripts that will be
    processed by <a href="mod_cgi.html">mod_cgi</a>'s cgi-script
    handler. URLs with a (%-decoded) path beginning with
    <em>URL-path</em> will be mapped to scripts beginning with the
    second argument which is a full pathname in the local
    filesystem.</p>

    <p>Example:</p>

    <blockquote>
      <code>ScriptAlias /cgi-bin/ /web/cgi-bin/</code>
    </blockquote>

    <p>A request for http://myserver/cgi-bin/foo would cause the
    server to run the script /web/cgi-bin/foo.</p>
    <hr />

    <h2><a id="scriptaliasmatch"
    name="scriptaliasmatch">ScriptAliasMatch</a></h2>

    <p><a href="directive-dict.html#Syntax"
    rel="Help"><strong>Syntax:</strong></a> ScriptAliasMatch
    <em>regex file-path</em>|<em>directory-path</em><br />
     <a href="directive-dict.html#Context"
    rel="Help"><strong>Context:</strong></a> server config, virtual
    host<br />
     <a href="directive-dict.html#Status"
    rel="Help"><strong>Status:</strong></a> Base<br />
     <a href="directive-dict.html#Module"
    rel="Help"><strong>Module:</strong></a> mod_alias<br />
     <a href="directive-dict.html#Compatibility"
    rel="Help"><strong>Compatibility:</strong></a> Available in
    Apache 1.3 and later</p>

    <p>This directive is equivalent to <a
    href="#scriptalias">ScriptAlias</a>, 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>
<pre>
    ScriptAliasMatch ^/cgi-bin(.*) /usr/local/apache/cgi-bin$1
</pre>
        <hr />

    <h3 align="CENTER">Apache HTTP Server Version 1.3</h3>
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