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Amazon Web Services (AWS) faced a major outage on Monday due to DNS resolution issues, which triggered a cascade of failures affecting large parts of the internet. The incident highlighted the global reliance on hyperscalers like AWS and the challenges faced by both providers and their customers during such events. The outage was attributed to Domain System Registry failures in DynamoDB, which led to complications with Network Load Balancer service and EC2 Instances. AWS acknowledged the impact on its customers and pledged to improve its system’s availability. This incident underscores the fragility of critical cloud infrastructure and the need for robust contingency plans.

Key facts

  • AWS experienced DNS resolution issues that caused widespread outages across the internet.
  • The outage was linked to failures in the Domain System Registry within DynamoDB.
  • Complications with the Network Load Balancer and EC2 Instances exacerbated the problem.
  • The incident lasted approximately 15 hours from detection to resolution.
  • AWS acknowledged the significant impact on customers and committed to improving system reliability.
See article on Wired Security