Great Circle Associates Firewalls
(January 1996)
 

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Subject: RE: Firewalls-Digest V5 #2
From: "Sudduth, Larry" <SudduthLM @ SecureC2 . com>
Date: Fri, 12 Jan 1996 02:52:30 -0500
To: "'Debbie Driesman'" <ddriesma @ nastg . gsfc . nasa . gov>, "firewalls-digest @ GreatCircle . COM" <firewalls-digest @ GreatCircle . COM>, "Firewalls @ GreatCircle . COM" <Firewalls @ GreatCircle . COM>

>Debbie Driesman wrote January 11, 1996 8:22 AM
>Where can I get more information on PNS?  I've tried a number of the web
>search tools and they didn't find anything.

>> responding to A. Padgett Peterson's message Tue, 2 Jan 1996 14:02:49 
-0500
>>2) Sounds like you have dedicated lines. Have you considered requiring 
PNS
>>   (Protected Network Service) from the telco ? (May have a different 
name
>>   but should be available). With this your lines are isolated/protected
>>   from other trunks. A dedicated line is not at the same risk as the 
Internet
>>   and PNS is generally "good enough" for SBU (Sensitive but 
Unclassified)
>>   traffic.
>
>>   When the idea was introduced a couple of years ago, it was to be
>>   approved by the NSA and was a part of the FTS contract. Dunno where it
>>   is now.

Protected Network Services, telecommunications systems approved by NSA for 
the plain-text transmission of Sensitive but Unclassified U. S. Government 
information of U. S. Government Departments and Agencies, and their 
offerors, are described in the semi-annual NSA publication, "Information 
Systems Security Products and Services Catalogue."  Previously the PNS 
sobriquet described carrier-guaranteed "copper-only" long haul transport 
(e.g., no microwave relay).  Such protection was effective against foreign 
ELINT threats, but not much else.  The focus of the PNS "program" and the 
number of offerors has significantly expanded in the last several years.

Samples of the INFOSEC Catalogue can perhaps be cadged from NSA, Attn.: 
V211, 9800 Savage Road, Ft. Meade, MD 20755-6000.  The GPO sells the 
catalogue singly and by subscription (two issues plus two supplements 
equals quarterly); call them at (202) 512-1800.

-=-=-=-=-=-=-=-=-=-=-=-=-=
SudduthLM @
 SecureC2 .
 com


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end

Indexed By Date Previous: Re: NT Fire Wall
From: "Erwin Schuermann" <schuerma @ luis . cci . de>
Next: Re: Mitnick & the TCP Sequence Number Attack on Shimomura (LONG posting)
From: mulligan @ future . incog . com
Indexed By Thread Previous: Re: Firewalls-Digest V5 #2
From: ddriesma @ nastg . gsfc . nasa . gov (Debbie Driesman)
Next: Bastion netmask query
From: Jon Whitton <jonw @ mntcmp2 . demon . co . uk>

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