[Asterisk-biz] carrier blocking

[Linsys]

Well I guess because I have never used a DNS Tunnel, so HA! JK...

This sounds like a good idea... links?

-=Linsys=-

IntrusionSec.com
#1 Hacker Gamez Web Site On the Internet
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linsys at intrusionsec.com

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On Tue, 25 Oct 2005, trixter aka Bret McDanel wrote:

> On Tue, 2005-10-25 at 19:31 -0600, Linsys wrote:
>> Finally, we sould all come up with a VPN (IPsec) Tunnel solution for VOIP,
>> this would NOT be vulnerable to this type of jitter injection technique,
>> however would require much more bandwidth.
>>
>
> Why not use a DNS tunnel, as has been proven capable of streaming audio.
> Basically the data is sent as DNS lookups and replies as the response.
> There is a ping that has to occur to check if the remote system has any
> data, but these types of tunnels do have code for them already.
>
> Because it works off DNS the only way to break this is to have a dummy
> DNS server return the same IP and proxy everything.  Something that
> would be noticed by many and undesirable for whomever manages that
> system.
>
> Many hotspots route DNS data even if you havent authenticated yet and
> they block virtually everything else one way or the other.  ahem
>
> --
> Trixter http://www.0xdecafbad.com     Bret McDanel
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