Great Circle Associates Firewalls
(February 1997)
 

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Subject: Re: SLr* released. rsh,rcp,rdist over SSL
From: "Simon J. Gerraty" <sjg @ zen . quick . com . au>
Date: Tue, 11 Feb 1997 10:16:06 +1100 (EST)
To: firewalls @ greatcircle . com
Cc: peter @ baileynm . com, sjg @ quick . com . au
References: <9702101710 . AA02330 @ sonic . nmti . com . nmti . com>

>> > Also I suppose i should ask is does sslr* have an officially sanctioned
>> > port number? and ofcourse does it have an rfc?

No, though I guess it should - I run it on port 414
And it has been suggested that the service name should be shells not SSLshell.
The next release may address these and have a more clearly stated
license policy :-)

>> It uses port 22, which is still unassigned to my last version of the
>> Assigned Numbers (RFC 1700, 1994/10).  Until now there's no RFC about
>> it, but the package comes with a draft.

>Not good. That's what ssh is using too.

Actually the question was about SSLr*, but the guy was talking about
ssh.

>My big question, is SSLr* proxyable? SSH isn't (you have to log in to the
>proxy host, then run a separate ssh from there, which rules out SCP and
>the like).

Not really, SSLr* _is_ r* only the transport an authentication model
are changed.  Though you can override the port to be used, so you
could setup plug-gw's on various ports.  Not really what I'd call
proxying. 

If there is much demand for it, ssl_rcmd() could probably be modified
to handle HTTPS's CONNECT protocol, so you could possibly just use
your WEB proxy - I'll look into that.  Anyway you do it though, you
can forget your secondary error/signal channel...

For interactive sessions, you can proxy ssh btw.  At one site where I
work I have set up tn-gw to treat port 22 as a "raw" port, and the
guys who use ssh have hacked themeslves a simple proxy that negotiates
the connection via tn-gw, and then hands the socket to ssh - I think
that is how it works.

Oh, and SSLr* does not include rlogin - way too many system
dependencies and stelnet using X.509 certs provides for auto login
anyway. 

--sjg
-- 
Simon J. Gerraty        <sjg @
 quick .
 com .
 au>

#include <disclaimer>   /* imagine something _very_ witty here */


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