A DNS CONFIGURATION BLUNDER has been blamed for an outage that downed Microsoft Azure and 365 offerings. This week, Microsoft cloud customers moaned that they could not connect with many services for numerous hours due to the DNS brokerage. A range of Microsoft offerings was impacted, including Azure databases, Microsoft 365, Teams, Dynamics, OneDrive, SharePoint Online, and Compute services.
Following reports of the flaw, Microsoft posted an update to its Azure repute page stating, “Customers may also experience intermittent connectivity troubles with Azure and different Microsoft services (inclusive of M365, Dynamics, DevOps, and so forth).”
“Engineers are investigating DNS resolution troubles affecting community connectivity. Connectivity problems are ensuing downstream effects on compute, storage, and database offerings, and some clients cannot file assist requests. “More records might be provided because it becomes to be had. Some customers may start to see healing.” After investigating the outage, Microsoft showed that “users may be not able to get right of entry to Microsoft 365 services or capabilities”, including that it had “recognized and corrected a DNS configuration problem that prevented users from gaining access to Microsoft 365 offerings and functions.”
“We’ve found a boom in a successful connection, and our telemetry suggests that each service is improving. We’re persevering to display the environment to validate that the carrier has been restored.” The 3-hour outage has ended, with Microsoft confirming that its engineers have mitigated the difficulty and that most services have been recovered. “Engineers identified the underlying root cause as a nameserver delegation exchange affecting DNS decision and ensuing in downstream impact to Compute, Storage, App Service, AAD, and SQL Database offerings,” it said.
“A few domain names for Microsoft offerings had been incorrectly updated during the migration of a legacy DNS system to Azure DNS. No customer DNS statistics had been impacted for this incident’s duration, and the provision of Azure DNS remained at one hundred throughout the incident. The problem impacted only data for Microsoft services.
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