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Firewall Wizards: Re: tunnel vs open a hole

Re: tunnel vs open a hole

From: Marcus J. Ranum <mjr_at_ranum.com>
Date: Sun, 06 Apr 2003 21:12:13 -0400

Barney Wolff wrote:
>In the good old days, the definition of "firewall" was "that which
>implements your security policy" rather than "the box with that label".

Hey!!! I remember that definition!! <LOL> .. I ought to.....

>The implication of this reasoning is clear: If you don't control the
>internal tunnel endpoint(s), you don't control your security policy.

Yup. The problem is that there's so much shovelware, spyware, trojanware,
and social-engineerware that you DON'T really control the endpoints, you
just think you do. I've seen waaaay too many companies think "we have a
firewall, so we don't need to worry" - and not have antivirus software on
their interior machines because they are "safe" behind the firewall. It's
scary. :( We made a big mistake when we started building firewalls that
allowed outgoing connections that were not individually authenticated and
associated with a human user's request.

mjr.

---
Marcus J. Ranum				http://www.ranum.com
Computer and Communications Security	mjr_at_ranum.com
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Received on Apr 07 2003
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