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added "3.12 Why do FTP specific features over HTTP proxy fails?"

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Daniel Stenberg 2001-10-23 10:12:00 +00:00
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commit 7d3daa598f

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Updated: August 23, 2001 (http://curl.haxx.se/docs/faq.shtml)
Updated: October 23, 2001 (http://curl.haxx.se/docs/faq.shtml)
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@ -36,6 +36,7 @@ FAQ
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 @@ FAQ
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.