On Oct 20, 2009, at 5:37 PM, Tracy Reed wrote:
> Does such a tool exist? Is this a good idea? Any better way?

I think worrying about wireshark and sniffing is the wrong approach.  
If you're using BIND, it can do query logging. Just let it log all  
your queries for a given period of time, and grep for the things  
you're planning to remove. If they appear, that's a bad plan. :-)

Cheers,
D

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