Great Circle Associates Firewalls
(February 1997)
 

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Subject: Re: Pointcast - how to block....
From: claudel @ netcom . com (Claude V. Lucas)
Date: Fri, 14 Feb 1997 18:47:39 -0800 (PST)
To: Daniel . Blander @ ACSacs . Com (Daniel J Blander - Sr. Systems Engineer for ACS)
Cc: firewalls @ GreatCircle . COM
In-reply-to: <Pine . GSO . 3 . 95 . 970214000600 . 27531O-100000 @ ferrari> from "Daniel J Blander - Sr. Systems Engineer for ACS" at Feb 14, 97 00:11:16 am

> 
Hi

In the home directory thet the PCN client lives in
there is a file called 1.dc that contains the IP addresses of
the Pointcast servers. blocking inbound traffic from these address
does wonders for the available bandwidth...

claude

> 
> I am well versed on the security problems facing Pointcast implementation
> (this list has been generous in discussing the issues of this technology).
> 
> Now I have a site where we want to explicitly block **all** Pointcast
> traffic.  (Its due to bandwidth problems, not security at the moment).
> 
> Any pointers since there is little on the protocol that I have had
> in all my boundless free time to pick up....
> 
> I'd like to hear some general ideas on how to secure it, and then also if
> you can address that I have at my disposal Netscape Proxy, FW-1, and fwtk
> (1.3) for this particular scenario.
> 
> TIA
> 
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>  Daniel Blander 	=8^)	                    
>  Sr. Systems Engineer	 Applied Computer Solutions 
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>  Phone: (714) 842.7800		Fax: (714) 842.8299 
>  Email: Daniel .
 Blander @
 acsacs .
 com                  
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 
>  The Official Applied Computer Solutions Home Page
> 	     and Tech Tip of the Week:
> 	       http://www.acsacs.com
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> 
> 



References:
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From: aub @ atmsys . com (Alberto Begliomini)
Next: Re: Split DNS - Another way
From: Matt Larson <matt @ acmebw . com>
Indexed By Thread Previous: Pointcast - how to block....
From: "Daniel J Blander - Sr. Systems Engineer for ACS" <Daniel . Blander @ ACSacs . Com>
Next: RE: Pointcast - how to block....
From: Ziv Dascalu <ziv @ AbirNet . com>

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