Great Circle Associates Firewalls
(March 1996)
 

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Subject: Re: Dos based Firewalls
From: peter @ nmti . com (Peter da Silva)
Date: Fri, 22 Mar 1996 09:56:21 -0600 (CST)
To: mcnabb @ argus . cu-online . com (Paul McNabb)
Cc: Firewalls @ GreatCircle . COM
In-reply-to: <199603211911 . NAA07393 @ argus . cu-online . com> from "Paul McNabb" at Mar 21, 96 01:11:00 pm

> Whoa, there!  If the operating system is not "secure" then there is no
> guarantee that any program running on that OS is functioning properly.

There's only one program running on the OS, and that's the firewall
software itself.

> One last thing before the flames come in: if you are running a program
> on a DOS machine and that program is very well designed and written,
> then it is acting like a dedicated device rather than a computer and
> you can achieve a reasonable degree of security while that program
> is running.

That's exactly what it is. DOS is just a bootloader for a "firewall
operating system".


References:
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