masakunの日記: UltraDNS suffers attack, Amazon affected
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UltraDNS suffers attack, Amazon affected
Domain-name service (DNS) provider UltraDNS was targeted with a denial-of-service attack two days before Christmas, leaving some last-minute shoppers reportedly unable to connect to major retailers such as Amazon and Wal-Mart for a brief period.
Around 4:45 pm PT, UltraDNS noticed "an abnormal spike in queries," which it identified as a denial-of-service (DoS) attack, Allen Goldberg, vice president of corporate communications at Neustar -- UltraDNS's parent company -- said in a statement. The attack only affected Web surfers in the Northern California area and lasted less than an hour, the company stated.
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