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+<div id="page-content">
+<div id="preamble"><h1>Apache Module mod_proxy_ftp</h1>
+<div class="toplang">
+<p><span>Available Languages: </span><a href="../en/mod/mod_proxy_ftp.html" title="English">&nbsp;en&nbsp;</a> |
+<a href="../fr/mod/mod_proxy_ftp.html" hreflang="fr" rel="alternate" title="Français">&nbsp;fr&nbsp;</a></p>
+</div>
+<table class="module"><tr><th><a href="module-dict.html#Description">Description:</a></th><td>FTP support module for
+<code class="module"><a href="../mod/mod_proxy.html">mod_proxy</a></code></td></tr>
+<tr><th><a href="module-dict.html#Status">Status:</a></th><td>Extension</td></tr>
+<tr><th><a href="module-dict.html#ModuleIdentifier">Module Identifier:</a></th><td>proxy_ftp_module</td></tr>
+<tr><th><a href="module-dict.html#SourceFile">Source File:</a></th><td>mod_proxy_ftp.c</td></tr></table>
+<h3>Summary</h3>
+
+ <p>This module <em>requires</em> the service of <code class="module"><a href="../mod/mod_proxy.html">mod_proxy</a></code>. It provides support for the proxying
+ FTP sites. Note that FTP support is currently limited to
+ the GET method.</p>
+
+ <p>Thus, in order to get the ability of handling FTP proxy requests,
+ <code class="module"><a href="../mod/mod_proxy.html">mod_proxy</a></code> and <code class="module"><a href="../mod/mod_proxy_ftp.html">mod_proxy_ftp</a></code>
+ have to be present in the server.</p>
+
+ <div class="warning"><h3>Warning</h3>
+ <p>Do not enable proxying until you have <a href="mod_proxy.html#access">secured your server</a>. Open proxy
+ servers are dangerous both to your network and to the Internet at
+ large.</p>
+ </div>
+</div>
+<div id="quickview"><a href="https://www.apache.org/foundation/contributing.html" class="badge"><img src="https://www.apache.org/images/SupportApache-small.png" alt="Support Apache!" /></a><h3>Topics</h3>
+<ul id="topics">
+<li><img alt="" src="../images/down.gif" /> <a href="#mimetypes">Why doesn't file type <var>xxx</var>
+ download via FTP?</a></li>
+<li><img alt="" src="../images/down.gif" /> <a href="#type">How can I force an FTP ASCII download of
+ file <var>xxx</var>?</a></li>
+<li><img alt="" src="../images/down.gif" /> <a href="#ftpnonget">How can I do FTP upload?</a></li>
+<li><img alt="" src="../images/down.gif" /> <a href="#percent2fhck">How can I access FTP files outside
+ of my home directory?</a></li>
+<li><img alt="" src="../images/down.gif" /> <a href="#ftppass">How can I hide the FTP cleartext password
+ in my browser's URL line?</a></li>
+<li><img alt="" src="../images/down.gif" /> <a href="#wildcard">Why do I get a file listing when I expected
+ a file to be downloaded?</a></li>
+</ul><h3 class="directives">Directives</h3>
+<ul id="toc">
+<li><img alt="" src="../images/down.gif" /> <a href="#proxyftpdircharset">ProxyFtpDirCharset</a></li>
+<li><img alt="" src="../images/down.gif" /> <a href="#proxyftpescapewildcards">ProxyFtpEscapeWildcards</a></li>
+<li><img alt="" src="../images/down.gif" /> <a href="#proxyftplistonwildcard">ProxyFtpListOnWildcard</a></li>
+</ul>
+<h3>Bugfix checklist</h3><ul class="seealso"><li><a href="https://www.apache.org/dist/httpd/CHANGES_2.4">httpd changelog</a></li><li><a href="https://bz.apache.org/bugzilla/buglist.cgi?bug_status=__open__&amp;list_id=144532&amp;product=Apache%20httpd-2&amp;query_format=specific&amp;order=changeddate%20DESC%2Cpriority%2Cbug_severity&amp;component=mod_proxy_ftp">Known issues</a></li><li><a href="https://bz.apache.org/bugzilla/enter_bug.cgi?product=Apache%20httpd-2&amp;component=mod_proxy_ftp">Report a bug</a></li></ul><h3>See also</h3>
+<ul class="seealso">
+<li><code class="module"><a href="../mod/mod_proxy.html">mod_proxy</a></code></li>
+<li><a href="#comments_section">Comments</a></li></ul></div>
+<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div>
+<div class="section">
+<h2><a name="mimetypes" id="mimetypes">Why doesn't file type <var>xxx</var>
+ download via FTP?</a></h2>
+ <p>You probably don't have that particular file type defined as
+ <code>application/octet-stream</code> in your proxy's mime.types
+ configuration file. A useful line can be:</p>
+
+ <div class="example"><pre>application/octet-stream bin dms lha lzh exe class tgz taz</pre></div>
+ <p>Alternatively you may prefer to use the <code class="directive"><a href="../mod/core.html#forcetype">ForceType</a></code>
+ directive to default everything to binary:</p>
+ <div class="example"><pre class="prettyprint lang-config">ForceType application/octet-stream</pre>
+</div>
+ </div><div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div>
+<div class="section">
+<h2><a name="type" id="type">How can I force an FTP ASCII download of
+ file <var>xxx</var>?</a></h2>
+ <p>In the rare situation where you must download a specific file using the
+ FTP <code>ASCII</code> transfer method (while the default transfer is in
+ <code>binary</code> mode), you can override <code class="module"><a href="../mod/mod_proxy.html">mod_proxy</a></code>'s
+ default by suffixing the request with <code>;type=a</code> to force an
+ ASCII transfer. (FTP Directory listings are always executed in ASCII mode,
+ however.)</p>
+ </div><div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div>
+<div class="section">
+<h2><a name="ftpnonget" id="ftpnonget">How can I do FTP upload?</a></h2>
+ <p>Currently, only GET is supported for FTP in <code class="module"><a href="../mod/mod_proxy.html">mod_proxy</a></code>. You can
+ of course use HTTP upload (POST or PUT) through an Apache proxy.</p>
+ </div><div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div>
+<div class="section">
+<h2><a name="percent2fhck" id="percent2fhck">How can I access FTP files outside
+ of my home directory?</a></h2>
+ <p>An FTP URI is interpreted relative to the home directory of the user
+ who is logging in. Alas, to reach higher directory levels you cannot
+ use /../, as the dots are interpreted by the browser and not actually
+ sent to the FTP server. To address this problem, the so called <dfn>Squid
+ %2f hack</dfn> was implemented in the Apache FTP proxy; it is a
+ solution which is also used by other popular proxy servers like the <a href="http://www.squid-cache.org/">Squid Proxy Cache</a>. By
+ prepending <code>/%2f</code> to the path of your request, you can make
+ such a proxy change the FTP starting directory to <code>/</code> (instead
+ of the home directory). For example, to retrieve the file
+ <code>/etc/motd</code>, you would use the URL:</p>
+
+ <div class="example"><p><code>
+ ftp://<var>user</var>@<var>host</var>/%2f/etc/motd
+ </code></p></div>
+ </div><div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div>
+<div class="section">
+<h2><a name="ftppass" id="ftppass">How can I hide the FTP cleartext password
+ in my browser's URL line?</a></h2>
+ <p>To log in to an FTP server by username and password, Apache uses
+ different strategies. In absence of a user name and password in the URL
+ altogether, Apache sends an anonymous login to the FTP server,
+ <em>i.e.</em>,</p>
+
+ <div class="example"><p><code>
+ user: anonymous<br />
+ password: apache-proxy@
+ </code></p></div>
+
+ <p>This works for all popular FTP servers which are configured for
+ anonymous access.</p>
+
+ <p>For a personal login with a specific username, you can embed the user
+ name into the URL, like in:</p>
+
+ <div class="example"><p><code>
+ ftp://<var>username</var>@<var>host</var>/myfile
+ </code></p></div>
+
+ <p>If the FTP server asks for a password when given this username (which
+ it should), then Apache will reply with a <code>401</code> (Authorization
+ required) response, which causes the Browser to pop up the
+ username/password dialog. Upon entering the password, the connection
+ attempt is retried, and if successful, the requested resource is
+ presented. The advantage of this procedure is that your browser does not
+ display the password in cleartext (which it would if you had used</p>
+
+ <div class="example"><p><code>
+ ftp://<var>username</var>:<var>password</var>@<var>host</var>/myfile
+ </code></p></div>
+
+ <p>in the first place).</p>
+
+ <div class="note"><h3>Note</h3>
+ <p>The password which is transmitted in such a way is not encrypted on
+ its way. It travels between your browser and the Apache proxy server in
+ a base64-encoded cleartext string, and between the Apache proxy and the
+ FTP server as plaintext. You should therefore think twice before
+ accessing your FTP server via HTTP (or before accessing your personal
+ files via FTP at all!) When using insecure channels, an eavesdropper
+ might intercept your password on its way.</p>
+ </div>
+ </div><div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div>
+<div class="section">
+<h2><a name="wildcard" id="wildcard">Why do I get a file listing when I expected
+ a file to be downloaded?</a></h2>
+ <p>In order to allow both browsing the directories on an FTP server and
+ downloading files, Apache looks at the request URL. If it looks like
+ a directory, or contains wildcard characters ("*?[{~"), then it
+ guesses that a listing is wanted instead of a download.</p>
+ <p>You can disable the special handling of names with wildcard characters.
+ See the <code class="directive"><a href="#proxyftplistonwildcard">ProxyFtpListOnWildcard</a></code> directive.
+ </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="ProxyFtpDirCharset" id="ProxyFtpDirCharset">ProxyFtpDirCharset</a> <a name="proxyftpdircharset" id="proxyftpdircharset">Directive</a></h2>
+<table class="directive">
+<tr><th><a href="directive-dict.html#Description">Description:</a></th><td>Define the character set for proxied FTP listings</td></tr>
+<tr><th><a href="directive-dict.html#Syntax">Syntax:</a></th><td><code>ProxyFtpDirCharset <var>character_set</var></code></td></tr>
+<tr><th><a href="directive-dict.html#Default">Default:</a></th><td><code>ProxyFtpDirCharset ISO-8859-1</code></td></tr>
+<tr><th><a href="directive-dict.html#Context">Context:</a></th><td>server config, virtual host, directory</td></tr>
+<tr><th><a href="directive-dict.html#Status">Status:</a></th><td>Extension</td></tr>
+<tr><th><a href="directive-dict.html#Module">Module:</a></th><td>mod_proxy_ftp</td></tr>
+<tr><th><a href="directive-dict.html#Compatibility">Compatibility:</a></th><td>Available in Apache 2.2.7 and later. Moved from <code class="module"><a href="../mod/mod_proxy.html">mod_proxy</a></code> in Apache 2.3.5.</td></tr>
+</table>
+ <p>The <code class="directive">ProxyFtpDirCharset</code> directive defines the
+ character set to be set for FTP directory listings in HTML generated by
+ <code class="module"><a href="../mod/mod_proxy_ftp.html">mod_proxy_ftp</a></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="ProxyFtpEscapeWildcards" id="ProxyFtpEscapeWildcards">ProxyFtpEscapeWildcards</a> <a name="proxyftpescapewildcards" id="proxyftpescapewildcards">Directive</a></h2>
+<table class="directive">
+<tr><th><a href="directive-dict.html#Description">Description:</a></th><td>Whether wildcards in requested filenames are escaped when sent to the FTP server</td></tr>
+<tr><th><a href="directive-dict.html#Syntax">Syntax:</a></th><td><code>ProxyFtpEscapeWildcards on|off</code></td></tr>
+<tr><th><a href="directive-dict.html#Default">Default:</a></th><td><code>ProxyFtpEscapeWildcards on</code></td></tr>
+<tr><th><a href="directive-dict.html#Context">Context:</a></th><td>server config, virtual host, directory</td></tr>
+<tr><th><a href="directive-dict.html#Status">Status:</a></th><td>Extension</td></tr>
+<tr><th><a href="directive-dict.html#Module">Module:</a></th><td>mod_proxy_ftp</td></tr>
+<tr><th><a href="directive-dict.html#Compatibility">Compatibility:</a></th><td>Available in Apache 2.3.3 and later</td></tr>
+</table>
+ <p>The <code class="directive">ProxyFtpEscapeWildcards</code> directive
+ controls whether wildcard characters ("*?[{~") in requested
+ filenames are escaped with backslash before sending them to the
+ FTP server. That is the default behavior, but many FTP servers
+ don't know about the escaping and try to serve the literal filenames
+ they were sent, including the backslashes in the names.</p>
+ <p>Set to "off" to allow downloading files with wildcards
+ in their names from FTP servers that don't understand wildcard
+ escaping.</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="ProxyFtpListOnWildcard" id="ProxyFtpListOnWildcard">ProxyFtpListOnWildcard</a> <a name="proxyftplistonwildcard" id="proxyftplistonwildcard">Directive</a></h2>
+<table class="directive">
+<tr><th><a href="directive-dict.html#Description">Description:</a></th><td>Whether wildcards in requested filenames trigger a file listing</td></tr>
+<tr><th><a href="directive-dict.html#Syntax">Syntax:</a></th><td><code>ProxyFtpListOnWildcard on|off</code></td></tr>
+<tr><th><a href="directive-dict.html#Default">Default:</a></th><td><code>ProxyFtpListOnWildcard on</code></td></tr>
+<tr><th><a href="directive-dict.html#Context">Context:</a></th><td>server config, virtual host, directory</td></tr>
+<tr><th><a href="directive-dict.html#Status">Status:</a></th><td>Extension</td></tr>
+<tr><th><a href="directive-dict.html#Module">Module:</a></th><td>mod_proxy_ftp</td></tr>
+<tr><th><a href="directive-dict.html#Compatibility">Compatibility:</a></th><td>Available in Apache 2.3.3 and later</td></tr>
+</table>
+ <p>The <code class="directive">ProxyFtpListOnWildcard</code> directive
+ controls whether wildcard characters ("*?[{~") in requested
+ filenames cause <code class="module"><a href="../mod/mod_proxy_ftp.html">mod_proxy_ftp</a></code> to return a listing
+ of files instead of downloading a file. By default (value on),
+ they do.</p>
+ <p>Set to "off" to allow downloading files even if they
+ have wildcard characters in their names.</p>
+
+</div>
+</div>
+<div class="bottomlang">
+<p><span>Available Languages: </span><a href="../en/mod/mod_proxy_ftp.html" title="English">&nbsp;en&nbsp;</a> |
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+</div><div class="top"><a href="#page-header"><img src="../images/up.gif" alt="top" /></a></div><div class="section"><h2><a id="comments_section" name="comments_section">Comments</a></h2><div class="warning"><strong>Notice:</strong><br />This is not a Q&amp;A section. Comments placed here should be pointed towards suggestions on improving the documentation or server, and may be removed by our moderators if they are either implemented or considered invalid/off-topic. Questions on how to manage the Apache HTTP Server should be directed at either our IRC channel, #httpd, on Libera.chat, or sent to our <a href="https://httpd.apache.org/lists.html">mailing lists</a>.</div>
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