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NANOG chatter confirming it is an issue with UltraDNS. Seems to be west coast related. EDIT: Potentially a DOS attack. From NANOG: "We have some DNS providing

by shaddi 17y ago

NANOG chatter confirming it is an issue with UltraDNS. Seems to be west coast related. EDIT: Potentially a DOS attack. From NANOG: "We have some DNS providing type customers (not UltraDNS) receiving a few million packets/sec of UDP/53 DoS traffic, starting at about the same time as the UltraDNS problems. No clue if it's related, but it certainly sounds suspicious. :)"