Great Circle Associates Firewalls
(April 1996)
 

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Subject: RE: Cracking NT via RAS
From: nkeenan @ gsionline . com (Nick Keenan)
Date: Tue, 16 Apr 1996 02:31:25 +0000
To: Mike Herbert <herbem2 @ tdbank . ca>
Cc: Firewalls @ greatcircle . com

>Has anyone considered the issues with using an NT machine as an
>application/firewall server. Consider the following a NT server with two
>network attachments one external, a RAS dialin connection running NetBEUI,
>and an internal one, token-ring running IP. Anyone is allowed access to the
>outside via the RAS dialin. The internal network is the Internal network no
>firewall, nothing at all between the NT servers and everyone else. Sounds
>like a problem waiting to happen but I have no proof to use in stating my
>case. Can anyone provide any enlightenment as to the REAL potential problems.

Neither RAS nor NT itself will route across protocols. This setup is more
secure than you think -- users can access only the computer that they are
dialing into.   





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