Great Circle Associates Firewalls
(December 1996)
 

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Subject: RE: Firewalls over NT vs. UNIX
From: Todd Graham Lewis <lists @ reflections . mindspring . com>
Date: Fri, 6 Dec 1996 20:39:55 -0500 (EST)
To: riordan @ math . umn . edu
Cc: firewalls @ GreatCircle . COM
In-reply-to: <199612061658 . KAA07608 @ birch . math . umn . edu>

On Fri, 6 Dec 1996 riordan @
 math .
 umn .
 edu wrote:

> On Wed, 4 Dec 1996, Russ, making several good points, wrote:
> 
> > If you are going to use NT as a Firewall platform, there should be only
> > one reason you would do that. You want to integrate your Firewall into
> > your existing NT environment (for any of a number of reasons). 
> 
> I would generally think of that as an argument against an NT firewall:
> You have two doors each of which a bad guy must pass through to get to
> your goods.  Do you really want to use the same key for both doors?

I concur.  E.g., in a two-level firewall (app gateway protected by a
packet filter), OS diversity is a nice touch for exactly this reason.  (We
use FreeBSD and Linux for exactly that reason, but I think I've already
mentioned that. 8^) 

__
Todd Graham Lewis             Linux!                 Core Engineering
Mindspring Enterprises  tlewis @
 mindspring .
 com   (800) 719 4664, x2804



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