Rejected queries for mx???

Phil Mayers p.mayers at
Wed Jan 19 11:44:04 UTC 2011

On the subject of rejected queries - although this isn't a bind question 
per-se, I'm curious if anyone else here sees a lot of these:

client view main: query (cache) 
'' denied

We get *loads* of them to our authoritative resolvers. I am assuming 
they are attempts at cache poisoning given the (ahem) dubious 
geographical origin of the queries (no offense intended to anyone living 
in those parts of the world) but I can't see any corresponding inbound 
forged DNS packets in our netflow.

Just curious.

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