Re: FTP/SSH question

From: someone (someone_at_somewhere.com)
Date: 04/27/04 

Date: Tue, 27 Apr 2004 02:54:16 GMT

Darren Tucker wrote:
> In article <_Kijc.14007$e4.9848@newsread2.news.pas.earthlink.net>,
> someone <someone@somewhere.com> wrote:
>
>>What does it mean to connect to a server through FTP over SSH2 and using
>>port 21? Is that port forwarding?
>
>
> Yes, but because FTP is a pathologically evil protocol (at least as far
> as firewalling and proxying is concerned :-) the SSH software needs
> application-specific knowledge (ie the ability to decode the PORT
> and PASV commands and act on them) in order to successfully forward it.
>
> Not all clients have the ability. OpenSSH doesn't. I think the SSH.com
> v2 clients do. Not sure about any others.
>
>
>>By the way, that server does not accept sftp or scp, it accepts regular
>>FTP clients on port 21 and FTP over SSH2 clients on port 21 as well. And
>>the only client that I know work with it is SecureFx
>><http://www.vandyke.com/products/securefx>.
>
>
> Apparently this does too.

Is there some documentation on how to build a client for such servers?

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