1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
|
<?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>
<meta content="text/html; charset=ISO-8859-1" http-equiv="Content-Type" />
<!--
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
This file is generated from xml source: DO NOT EDIT
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
-->
<title>mod_proxy_ftp - Apache HTTP Server Version 2.5</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 rel="stylesheet" type="text/css" href="../style/css/prettify.css" />
<script src="../style/scripts/prettify.min.js" type="text/javascript">
</script>
<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/quickreference.html">Directives</a> | <a href="http://wiki.apache.org/httpd/FAQ">FAQ</a> | <a href="../glossary.html">Glossary</a> | <a href="../sitemap.html">Sitemap</a></p>
<p class="apache">Apache HTTP Server Version 2.5</p>
<img alt="" src="../images/feather.png" /></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/">Documentation</a> > <a href="../">Version 2.5</a> > <a href="./">Modules</a></div>
<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"> en </a> |
<a href="../fr/mod/mod_proxy_ftp.html" hreflang="fr" rel="alternate" title="Fran�ais"> fr </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"><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__&list_id=144532&product=Apache%20httpd-2&query_format=specific&order=changeddate%20DESC%2Cpriority%2Cbug_severity&component=mod_proxy_ftp">Known issues</a></li><li><a href="https://bz.apache.org/bugzilla/enter_bug.cgi?product=Apache%20httpd-2&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> <a title="Permanent link" href="#mimetypes" class="permalink">¶</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> <a title="Permanent link" href="#type" class="permalink">¶</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> <a title="Permanent link" href="#ftpnonget" class="permalink">¶</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> <a title="Permanent link" href="#percent2fhck" class="permalink">¶</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> <a title="Permanent link" href="#ftppass" class="permalink">¶</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> <a title="Permanent link" href="#wildcard" class="permalink">¶</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> <a title="Permanent link" href="#proxyftpdircharset" class="permalink">¶</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>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> <a title="Permanent link" href="#proxyftpescapewildcards" class="permalink">¶</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> <a title="Permanent link" href="#proxyftplistonwildcard" class="permalink">¶</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"> en </a> |
<a href="../fr/mod/mod_proxy_ftp.html" hreflang="fr" rel="alternate" title="Fran�ais"> fr </a></p>
</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&A section. Comments placed here should be pointed towards suggestions on improving the documentation or server, and may be removed again 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 Freenode, or sent to our <a href="http://httpd.apache.org/lists.html">mailing lists</a>.</div>
<script type="text/javascript"><!--//--><![CDATA[//><!--
var comments_shortname = 'httpd';
var comments_identifier = 'http://httpd.apache.org/docs/trunk/mod/mod_proxy_ftp.html';
(function(w, d) {
if (w.location.hostname.toLowerCase() == "httpd.apache.org") {
d.write('<div id="comments_thread"><\/div>');
var s = d.createElement('script');
s.type = 'text/javascript';
s.async = true;
s.src = 'https://comments.apache.org/show_comments.lua?site=' + comments_shortname + '&page=' + comments_identifier;
(d.getElementsByTagName('head')[0] || d.getElementsByTagName('body')[0]).appendChild(s);
}
else {
d.write('<div id="comments_thread">Comments are disabled for this page at the moment.<\/div>');
}
})(window, document);
//--><!]]></script></div><div id="footer">
<p class="apache">Copyright 2019 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>
<p class="menu"><a href="../mod/">Modules</a> | <a href="../mod/quickreference.html">Directives</a> | <a href="http://wiki.apache.org/httpd/FAQ">FAQ</a> | <a href="../glossary.html">Glossary</a> | <a href="../sitemap.html">Sitemap</a></p></div><script type="text/javascript"><!--//--><![CDATA[//><!--
if (typeof(prettyPrint) !== 'undefined') {
prettyPrint();
}
//--><!]]></script>
</body></html>
|
