Great Circle Associates Firewalls
(November 1996)
 

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Subject: Re: Firewall future
From: Anton J Aylward <anton @ the-wire . com>
Date: Wed, 13 Nov 1996 23:03:11 -0500
To: Bill Stout <bill . stout @ hidata . com>
Cc: firewalls @ greatcircle . com

At 11:50 AM 12/11/96 -0800, you wrote:

>[snip]

>Let me make another statement:
>"If systems in a company's network use challenge/response authentication 
>and password encryption for all connections (such as where NT is headed), 
>there isn't justification for a firewall anymore.  Traditional Firewalls 
>are designed for UNIX environments where plaintext or unprotected 
>applications live, such as telnet/ftp/smtp/popmail/xwindows."
>
>
>Bill Stout
>_______________________________________________________________________________
>Senior Systems Admin  NT/Backoffice/Solaris/WWW-Db/Firewalls/Cisco/VM-UNIX/VMS
>Hitachi Data Systems  408-970-4822   ---  Disclaimer:  I speak only for myself

I seem to recall some well known author in the field saying that

        A firewall is the _network's_ response to poor security in the host.

I don't recall him saying "UNIX".   
My experience with DOS, Windows, Macintosh, VMS, MVS - anyhting that can talk 
over a network - is that it warrants a firewall, 

Not least of all becuase the firewall is the _single_ point of
interface/demarcation
between the network and the "other" (which could equally well be the hackers
in R&D, 
not the Internet).

I can't see doors going away, even if theives can hack their way though
walls using chainsaws.
I can't see people taking locks off door and just using the door to keep out
rain and snow.
(Or sand in climates where you don't get rain & snow. )

Sorry, Bill, I feel bound to rise to your bait here.

/anton
----------------------------------------------------------------------------
Anton J Aylward                   | Security is not something that comes in 
The Strahn and Strachan Group Inc | a self-contained box. It is an attribute 
Information Security Consultants  | of how you do business and as such 
Voice: (416) 494-8661             | needs to be managed carefully.
  Fax: (416) 494-8803             |      - Karen Goertzel, Wang Federal Inc.


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