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Re: libcurl: Problem when connect to a shared hosting server over ftp+ssl

From: chu ngoc hung <hungcn_at_gmail.com>
Date: Tue, 5 Feb 2013 16:50:28 +0700

I tried to connect with --ftp-ssl-ccc option, either passive or active, but
i receive the same result (same error). --ftp-port option is always 21
(default).

Note that Ftp plain connection is always OK. And I don't setup any options
more when using Cyberduck with ftp-ssl (firewall or proxy) but it is always
success.:(

On Tue, Feb 5, 2013 at 3:00 PM, Dan Fandrich <dan_at_coneharvesters.com> wrote:

> On Tue, Feb 05, 2013 at 02:16:01PM +0700, chu ngoc hung wrote:
> > Here is my log (when disable host/peer):
> [...]
> > * FTP 0x282dda0 state change from QUOTE to PASV
> > * Connect data stream passively
> > < 229 Extended Passive mode OK (|||38012|)
> >
> > * Trying 69.195.91.50...
> > * Operation timed out
> > * couldn't connect to host
> > * got positive EPSV response, but can't connect. Disabling EPSV
>
> This is a sign of a likely firewall, either at the client or host end.
> Strict
> firewalls don't let arbitrary TCP connections through, and since this
> ftp connection is encrypted, deep packet inspection doesn't help. Try the
> --ftp-ssl-ccc option to send the control connection in the clear, or try
> the
> --ftp-port option to make the data connection be initiated from the server
> instead of the client.
>
> >>> Dan
> -------------------------------------------------------------------
> List admin: http://cool.haxx.se/list/listinfo/curl-library
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>

-- 
Chu Ngọc Hưng
Hanoi University Of Technology
Tel:+84904010806
E-Mail: hungcn_at_gmail.com, or ngochunghutit_at_yahoo.com

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Received on 2013-02-05