How a DNS Glitch Triggered a Global AWS Outage: An In-Depth Analysis

Oct 30, 2025 · 10 min read · It was Diwali night in India. The on-call person was probably lighting firecrackers in their yard when the PagerDuty storm began. I believe many companies worldwide faced similar challenges on the 19th and 20th of October when the AWS global outage s...