Security Basics mailing list archives

Fwd: what should I do when....


From: "Eric Starace" <gpz1100.rider () gmail com>
Date: Fri, 11 Jul 2008 22:48:52 -0400

First, blocking all traffic in and out would really defeat the purpose
of having the host/server/workstation/whatever on a network.  Save
yourself some money and remove your firewall, routers and ISP service
if that is what you are currently doing.

Second, when thinking security you would be a fool if you were just
thinking about overt malicious threats from outside of the network.
You must layer security and never rely on a single solution.  You'll
get bitten and not realize it until your way over your head.


On 7/10/08, Sergio Castro <sergio.castro () unicin net> wrote:
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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