Re: bypassing employer's proxy to surf anonymously

["" <gimeshell () web de>]

On Tue, 13 Jun 2006 10:47:52 +0100
Hubert Seiwert <hubert () westpoint ltd uk> wrote:

> Another method of tunneling would be through DNS. You say that dns
> traffic is blocked
> on the server, but as long as there is a DNS server on the internal
> network that will do
> recursive resolving for you it's possible. You can use Dan Kaminsky's
> OzymanDNS scripts

Now i know surely 'udp src port 53' and 'udp dst port 53' are blocked.

But now my question:

How should it be possible for any internal DNS server to do recursive
resolving and get outside from internal network if dns traffic is
blocked and the only official/known dns resolving is done by proxy?

I didn't take a deeper look at these scripts yet, but i will do.
Perhaps i get all answers then but perhaps you can say, it isn't
possible to use these scripts under these given circumstances, in the
first place.

regards,
gimshell

------------------------------------------------------------------------------
This List Sponsored by: Cenzic

Concerned about Web Application Security? 
Why not go with the #1 solution - Cenzic, the only one to win the Analyst's 
Choice Award from eWeek. As attacks through web applications continue to rise, 
you need to proactively protect your applications from hackers. Cenzic has the 
most comprehensive solutions to meet your application security penetration 
testing and vulnerability management needs. You have an option to go with a 
managed service (Cenzic ClickToSecure) or an enterprise software 
(Cenzic Hailstorm). Download FREE whitepaper on how a managed service can 
help you: http://www.cenzic.com/news_events/wpappsec.php 
And, now for a limited time we can do a FREE audit for you to confirm your 
results from other product. Contact us at request () cenzic com for details.
------------------------------------------------------------------------------