tl;dr
In October 2025 AWS suffered a massive outage—its DNS simply gave up the ghost, taking DynamoDB’s name resolution offline and spawning a cascade of EC2 and Network Load Balancer errors. After a ten-day wait, AWS finally published a root-cause analysis that walks through exactly how a DNS hiccup spiraled into a full-blown, day-long meltdown.
What went down
0:00 Summary
5:30 How Dynamo lost its DNS
13:41 EC2 errors
16:16 Network Load Balancer errors
Read the full RCA from AWS here: https://aws.amazon.com/message/101925/
Watch on YouTube
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