added "3.12 Why do FTP specific features over HTTP proxy fails?" 
diff --git a/docs/FAQ b/docs/FAQ index ed0a96c..bc48850 100644 --- a/docs/FAQ +++ b/docs/FAQ 
@@ -1,4 +1,4 @@ -Updated: August 23, 2001 (http://curl.haxx.se/docs/faq.shtml) +Updated: October 23, 2001 (http://curl.haxx.se/docs/faq.shtml)  _ _ ____ _   ___| | | | _ \| |   / __| | | | |_) | |  @@ -36,6 +36,7 @@  3.9 How do I use curl in PHP, Perl, Tcl, Ruby or Java?  3.10 What about SOAP, WebDAV, XML-RPC or similar protocols over HTTP?  3.11 How do I POST with a different Content-Type? + 3.12 Why do FTP specific features over HTTP proxy fails?    4. Running Problems  4.1 Problems connecting to SSL servers. @@ -375,6 +376,18 @@    curl -d "datatopost" -H "Content-Type: text/xml" [URL]   + 3.12 Why do FTP specific features over HTTP proxy fails? + + Because when you use a HTTP proxy, the protocol spoken on the network will + be HTTP, even if you specify a FTP URL. This effectively means that you + normally can't use FTP specific features such as ftp upload and ftp quote + etc. + + There is one exception to this rule, and that is if you can "tunnel through" + the given HTTP proxy. Proxy tunneling is enabled with a special option (-P) + and is generally not available as proxy admins usuable disable tunneling to + other ports than 443 (which is used for HTTPS access through proxies). +  4. Running Problems    4.1. Problems connecting to SSL servers.