Azure DNS service became overloaded. Last night, Microsoft published a root cause analysis (RCA) for this week's outage and explained that it was caused by their Azure DNS service becoming overloaded.

Azure DNS allows customers to host their DNS domain in Azure, so they c On September 26th, Microsoft announced the Azure DNS service has reached General Availability (GA) in all public Azure regions.

Update: An Azure DNS outage, which affected Microsoft customers and services across the globe for several hours, now seems to be mostly mitigated.

No customer DNS records were impacted during this incident, and the availability of Azure DNS remained at 100% throughout the incident. The problem impacted only records for Microsoft services.

"Engineers identified the underlying root cause as a nameserver delegation change affecting DNS resolution and resulting in downstream impact to Compute, Storage, App Service, AAD, and SQL Database ...

Microsoft this week issued an alert noting that domain name system (DNS) problems are occurring for Azure customers who had upgraded Canonical Ubuntu on Azure virtual machines.. The problem ...

In an update to its Azure status page, Microsoft says these problems were caused by a recent DNS change that triggered DNS resolution failures for the autologon.microsoftazuread.sso.com domain ...

The cloud computing industry has emerged as a transformative force in the tech landscape, with multi-cloud environments becoming the norm for organizations seeking scalability, reliability, and ...

The FortiGate is set up for DNS to be resolved by the two Azure servers. FortiNet support tried adding 8.8.8.8 as the third DNS server, but this didn't help.