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A comment on Zerigo DNS services down for 6+ hours due to massive DDoS. Parent comment

Re:Zerigo DNS services down for 6+ hours due to massive DDoS by gabriel-samfia on Thursday August 02, 2012 @05:22AM (#4327948)
We've seen the same kind of attack. We ended up limiting our DNS resolvers only to our own prefixes. It's a simple ACL in bind that allows recursion (domains your DNS server is not authoritative for), only to our subnets.
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