Security Basics mailing list archives

RE: what should I do when....


From: "Sergio Castro" <sergio.castro () unicin net>
Date: Thu, 10 Jul 2008 12:09:32 -0500

Let me try to understand what you are saying. If you block ALL traffic,
inbound and outbound, with a firewall, how then, would a hacker get into the
system? 

-----Mensaje original-----
De: listbounce () securityfocus com [mailto:listbounce () securityfocus com] En
nombre de Adriel Desautels
Enviado el: Miércoles, 09 de Julio de 2008 10:00 a.m.
Para: Ansgar -59cobalt- Wiechers
CC: security-basics () securityfocus com
Asunto: Re: what should I do when....

Ansgar,
        You can not bullet proof a computer system by using a firewall even
if you block all traffic to and from that system. In most configurations
firewalls block inbound connection attempts to *internal* systems, while
they permit outbound attempts from those systems.

        It is my opinion that firewalls are not security devices as much as
they are traffic shaping devices. Their job is to control network
connections and the flow of traffic, not to ensure that something can't be
hacked.

Regards,
        Adriel T. Desautels
        Chief Technology Officer
        Netragard, LLC.
        Office : 617-934-0269
        Mobile : 617-633-3821
        http://www.linkedin.com/pub/1/118/a45

        Join the Netragard, LLC. Linked In Group:
        http://www.linkedin.com/e/gis/48683/0B98E1705142

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Ansgar -59cobalt- Wiechers wrote:
On 2008-07-08 Weir, Jason wrote:
Quote of the day....  

"Bullet-proofing your systems is as easy as using a firewall"

If it was only true....

It is quite true, you're just underestimating the task of maintaining 
a firewall.

Regards
Ansgar Wiechers



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