DNS TXT field usage ?
Joe Provo
nanog-post at rsuc.gweep.net
Sun Mar 28 12:34:26 UTC 2010
On Sun, Mar 28, 2010 at 02:04:39PM +0200, jul wrote:
> Hello,
>
> While watching some parked domains, I recently observed one which has a
> TXT field containing some crypto value, something like a ssh key/RSA 512
> or 1024 output (only the crypto part 'cvxvcvcxvcxv=' ).
If the TXT data is a large wodge which changes, and/or there are
fluctuating interesting labels within the zone, then it isn't parked
but is being used for IP-over-DNS tunneling.
Cheers,
Joe
--
RSUC / GweepNet / Spunk / FnB / Usenix / SAGE
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