Re: FTP over SSH2, similar to SecureFX?
From: Richard Whalen (WhalenR@process.com)
Date: 11/18/02
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From: "Richard Whalen" <WhalenR@process.com> Date: Mon, 18 Nov 2002 08:54:08 -0500
>
> In other words - is VanDyke doing some sort of proprietary wizardry
> behind the scenes in their client?
>
Depends upon what you call "proprietary wizardry."
I can set up FTP over SSH2 using a version of F-Secure's SSH code. This
code includes a FTP filter specifically for this purpose. The following
string was used with "local forwarding" for this:
ftp/<forwarded_port_number>:localhost:21
the "ftp/" enables the FTP protocol filter that recognizes the PORT and PASV
commands and their replies so that a secure data connection can be opened
for data connections and the necessary information substituted into the
reply so that it is used. "localhost" is necessary to have the connection
appear to come from "localhost", so that FTP works with the address that the
SSH Daemon is listening on and so that any code in FTP that attempts to
match the IP address for the data connection to the control connection is
happy. (And of course "21" is FTP's port.)
Richard Whalen
Process Software
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