Wow, that's slick! ______________________________________________________________ Clayton Dukes ______________________________________________________________ On Wed, Aug 15, 2012 at 12:41 PM, Peter Gyongyosi <gyp@balabit.hu> wrote:
On 08/14/2012 10:58 PM, Gergely Nagy wrote:
Endre Szabo <syslog-ng@end.re> writes:
Here's a proof of concept of DNS based port knocking. Firewall opens up port of SSHd for 10 seconds after nameserver answering to a predefined DNS query. It uses pattern db and netfilter only.
http://vimeo.com/endreszabo/dns-portknocking This is seriously wicked.
Agreed. Would you care to write a bit more about it and/or share your patterndb/scripts?
thanks, Peter
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