[16472] in Athena Bugs

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Re: SSH

daemon@ATHENA.MIT.EDU (Greg Hudson)
Mon Nov 9 09:15:52 1998

To: sly@leonardo.mit.edu
Cc: bugs@MIT.EDU
In-Reply-To: Your message of "Mon, 09 Nov 1998 01:47:55 EST."
             <9811090647.AA12937@leonardo.mit.edu> 
Date: Mon, 09 Nov 1998 09:15:42 EST
From: Greg Hudson <ghudson@MIT.EDU>

> I'm currently running ssh 2.0.10 on several of my machines.

I'm surprised that you found the license acceptable.

> According to the 2.0.10 readme, 2.0.10 is backwards compatible with
> 1.2.26 and no lower versions.

I went and fetched the 2.0.10 distribution, and the documentation is
pretty unclear.  Which direction of compatibility are you interested
in?  ssh 2 client with ssh 1 server, or vice versa?

As far as I know, an ssh 2 client will never connect to an ssh 1
server, of any version.  Any compatibility the documentation might be
referring to would be in the other direction.

> Are there any plans to upgrade SSH versions any time soon to better
> deal with the compatibility issues?

If you're interested in the client version on workstations:

	Third-party package upgrades are not normally the subject of
	patch releases; they are too destabilizing.  We could try to
	retrofit particular protocol changes if they were small.  But
	right now I don't think we understand the problem at all.

If you're interested in the server version:

	The same reasoning applies to workstations, but we could
	probably update the sshd version on the dialups if it actually
	improved things any.  But I doubt it would.

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