Microsoft experienced a failure with its Azure DNS servers on April 1. The issue was quickly resolved and the root cause determined to be a bug. That’s all good, but Azure has suffered several recent problems which have affected other Microsoft cloud services from Office 365 to Bing to Xbox. Microsoft says they are taking action to remove the single point of failures in their infrastructure. Let’s hope that they get the work done before the Microsoft cloud suffers a more widespread outage.
https://practical365.com/azure-dns-failure-highlights-cloud-failibility/
