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North American Network Operators Group Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical From Microsoft's site
http://www.microsoft.com/info/siteaccess.htm "Microsoft Explains Site Access Issues On Tuesday evening and Wednesday, many Microsoft customers had difficulty accessing the company's Web sites. The cause has been determined, and the issue is resolved. At 6:30 p.m. Tuesday (PST), a Microsoft technician made a configuration change to the routers on the edge of Microsoft's Domain Name Server network. The DNS servers are used to connect domain names with numeric IP addresses (e.g. 207.46.230.219) of the various servers and networks that make up Microsoft's Web presence. The mistaken configuration change limited communication between DNS servers on the Internet and Microsoft's DNS servers. This limited communication caused many of Microsoft's sites to be unreachable (although they were actually still operational) to a large number of customers throughout last night and today. This was an operational error, and not the result of any issue with Microsoft or third-party products nor the security of our networks. Microsoft regrets any inconvenience caused to customers due to this issue. At approximately 5 p.m. Wednesday (PST), Microsoft removed the changes to the router configuration and immediately saw a massive improvement in the DNS network. All sites are currently available to customers. Again, Microsoft apologizes for the inconvenience."
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