Great Circle Associates Firewalls
(September 1994)
 

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Subject: 'active' and 'pasive' firewalls
From: gaus @ znanost . mz . hr (Damir Rajnovic)
Date: Wed, 28 Sep 1994 16:42:44 +0100 (MET)
To: firewalls @ greatcircle . com

Hello,

My contribution to philosophical thread.

It seems to me that having firewalls as they are now means introducing
more complexities into system. I see today's firewalls as 'active'
firewalls. That is -- the are visible on the net, you must pay attention
to it (as a user, system manager must always pay attention on it).

What will be if we have 'pasive' firewall? One that will not be visible,
one that will aciting like signal processor. Idea is to have one black
box which will monitor every packet and perform appropriate action if
some predefined condition is met. Nothing new? New is that nor use nor
ever other machine is aware od firewall. That means that you don't have
to advertise firewall to outside world.

What's wrong with this idea?

Cordially,

Gaus



     |-----------------------------------------------------------------|
     | Damir Rajnovic                      |  E-mail: gaus @
 znanost .
 hr  |
     | Ministry of Science and Technology  |  Voice: (+385 41)46 14 37 |
     | Strossmayerov trg 4, 41000 Zagreb   |                           |
     |-----------------------------------------------------------------|
     | There is no unsolvable problems, but question is - can you      | 
     | accept solution.   					       |
     |=================================================================|

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