NeuStar confirmed that some of its UltraDNS managed DNS service customers were knocked offline for several hours Tuesday morning by a distributed denial of service attack.
NeuStar is a leading provider of high-availability DNS services to e-retailers including J.Jill and Diamond.com as well as high-tech companies such as Oracle and Juniper. Competitor Dynamic Network Services blogged about the UltraDNS outage earlier today, asserting that it affected Amazon.com, SalesForce.com, advertising.com and Petco.com.
NeuStar has been a leader in the push to deploy security extensions to the DNS infrastructure through an emerging standard dubbed DNSSEC. However, DNSSEC doesn’t address the problem of denial of service attacks. Instead, DNSSEC prevents hackers from hijacking Web traffic and redirecting it to bogus sites. Denial of service attacks, on the other hand, occur when a hacker disables a Web site by flooding it with bogus requests usually sent from a bot network.
Source: networkworld.com/news/2009/033109-ultradns-service-attacked.html?t51hb
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