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