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Re: SSH revised


From: Marcus Brinkmann
Subject: Re: SSH revised
Date: Wed, 22 Mar 2006 09:18:35 +0100
User-agent: Wanderlust/2.14.0 (Africa) SEMI/1.14.6 (Maruoka) FLIM/1.14.7 (Sanjō) APEL/10.6 Emacs/21.4 (i486-pc-linux-gnu) MULE/5.0 (SAKAKI)

At Wed, 22 Mar 2006 08:32:48 +0100,
Guy Bormann <address@hidden> wrote:
> 
> On Tue, 2006-03-21 at 18:01 +0100, address@hidden wrote:
> [snip]
> > I did not say where the user authentication happens.  We (Bas, Olaf
> > and I) have developed some ideas to do the authentication not in
> > system code, but in user code.  More on this another time (it's a
> > separate discussion).  But in the case of SSH, it doesn't really
> > matter.  Even if the authentication is done by the system, there is
> > still some part of the SSH protocol that the system can not do for the
> > user, for example executing a shell command.
> [snip]
> Why would executing a shell command be a problem once you have a user
> session? Nothing prevents the client from sending the command over the
> SSH channel, accepting the potential output and closing the channel

I am not talking about the client end, but about the server end.

>   In case a command cannot even be executed from the user session
> interactively, there is no point in providing ssh functionality through
> a separate protocol.

I am not sure we mean the same thing by the term "user session".

> Actually, it should be build into the terminal
> facility from scratch as it should have been done originally (yes, I
> know, there weren't that many machines back then blablabla...).

In fact, I am not sure we mean the same thing with the term "terminal"
either :)

Thanks,
Marcus





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