TL;DR

On October 19, 2025, AWS suffered a DNS outage that dragged on for over 24 hours. Ten days later, the official root-cause analysis revealed that a chain of failures—starting with DynamoDB losing its DNS records and cascading through EC2 errors and Network Load Balancer hiccups—brought a large chunk of AWS services to a standstill.

Aside from the tech breakdown (timestamps included!), the rest of the description is a roundup of Hussein Nasser’s courses, tutorials, podcasts and affiliate links—spanning operating systems, Node.js, backend engineering, networking, databases, NGINX and more—plus invites to join his Medium, YouTube membership and “buy me a coffee” page.

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