North American Network Operators Group
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RE: DNS requests and Bandwidth

  • From: David Hubbard
  • Date: Wed May 11 12:39:58 2005 
From: aljuhani
> 
>  
> One way was to block requests from that DNS IP but that was not
> practicle as many users on that DNS won't be able to communicate
> with our server.
>  
> so What is the best way to prevent DNS queries consuming bandwidth.

Run an authoritative-only DNS server that won't respond
to queries for domains it doesn't handle.  tinydns from
http://cr.yp.to/djbdns.html would be an example.

David