What is UltraDNS? This term is related to to what affected Amazon stores sites. There were DNS troubles in their online services.
Read more about it from the article of latestnewsonline.net
This morning, our Dynect Platform monitoring system noticed a problem, a big one. From our global perspective, it appears that many online services, including amazon.com (the store, AWS, and S3), salesforce.com, advertisting.com, and petco.com, had some serious DNS troubles.
As many of our readers know, DNS is the glue that binds domain names, like dynect.com to their respective server’s IP addresses (204.13.248.122). Without DNS, nothing works; no web, e-mail, voip, IM, file sharing, etc.
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.
"Early this morning, our monitoring systems detected a significant denial of service attack, which affected a small subset of our customers, in some cases for as long as a few hours," the Reston, Va. company said in a statement. "While we continue to investigate the cause, the extent, and the duration of the attack, service was completely restored by 10 a.m. EST."
Deployment Guide: Cisco Application Networking for Microsoft SharePoint: Download nowNeuStar 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.
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