A buddy of mine just published a blog post here which is the inspiration of me posting this. I thought it might be interesting to some readers.
Dnsdist is an open source project from the PowerDNS team. It is a DNS load balancer that is DDoS aware and can deliver great performance to legitimate users while blocking abusive traffic.
The following is a talk from Bert Hubert (the PowerDNS founder) at UKNOF:
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