[c-nsp] DNS Stuff

Jay Hennigan jay at west.net
Mon Apr 27 02:23:02 EDT 2009


Mohammad Khalil wrote:
> Hey all
> is there any way to know the number of DNS requests or hits on a specific DNS server (Via SNMP for example)
> can we darw this ?

 From the server logs would be the obvious way.

In the context of the c-nsp list, netflow is one possibility or count 
the hits on an extended access-list facing the server "permit udp any 
host w.x.y.z eq 53 log" (danger, potential cpu pig).

--
Jay Hennigan - CCIE #7880 - Network Engineering - jay at impulse.net
Impulse Internet Service  -  http://www.impulse.net/
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