Great Circle Associates Firewalls
(December 1997)
 

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Subject: Re: NT as a central intranet firewall
From: David Lang <dlang @ diginsite . com>
Date: Thu, 11 Dec 1997 08:33:21 -0800 (PST)
To: "H. Morrow Long" <morrow . long @ yale . edu>
Cc: vslabs @ onwe . co . za, Firewalls @ GreatCircle . COM
In-reply-to: <199712111626 . LAA25343 @ SPARKY . CF . CS . YALE . EDU>

by "telnet" I am including one-time passwords, ssh and other similar
items.

David Lang


On Thu, 11 Dec 1997, H. Morrow Long wrote:

> David Lang <dlang @
 diginsite .
 com>
> >part of the problem some people (including me) have with NT is how much
> >hardware it take to get decent results. Yes you can get good results if
> >you use a dual PII-233 with 256MB ram but if you can do the same job on a
> >P-166 with 64-128MB ram with a different OS why should you go with NT? yes
> >the graphics are nice but if this is a server that sits unless checked it
> >is often nicer to have a machine you can telnet into to manage.
> >
> >David Lang
> 
> Note that 'a machine you can telnet into to manage' is not always a
> good move -- especially for Internet (or even intranet) firewalls.
> 
> Even when using Unix machines or dedicated routers (which support a
> telnet service) as firewalls the recommendation is generally to
> remove any ability to 'telnet' into either type of machine.
> 
> Only allowing login, configuration and administration of the
> firewall from the console is safest.  An authenticated (and 
> often encrypted) client-server protocol is usually supplied
> by firewall vendors for management these days -- it is usually
> GUI-based but sometimes has command line, scripting and Web
> interfaces as well.
>  
> "ssh" restricted to allow connections from only one or two machines on
> the safe secure network and requiring two-factor (NOT regular password)
> authentication to login may be acceptable for f/w mgt for some sites.
> 
> H. Morrow Long, Yale Univ IT ISO -Info Technology Services Info Security Officer
> 175 Whitney Avenue, New Haven, CT 06520-8276, (203)432-1248(voice) 432-0593(FAX)
> INET: http://pantheon.yale.edu/~long/ mailto:Morrow .
 Long @
 yale .
 edu
> PAGE: (203)370-3081, (800)347-2574,   mailto:1165469 @
 pager .
 mcb .
 com  PIN# 1165469
> PGP 1024/54F9FD69 1997/08/25 fp 97 ED E7 9D 41 8A 90 8C  4D 7C 22 56 80 BA 84 09
> 
> 



References:
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