Efficient Ops
Jun 10, 2025 · Operations
What Caused the June 6, 2025 Alibaba Cloud DNS Outage and How to Mitigate It?
On June 6, 2025 Alibaba Cloud experienced a widespread DNS resolution failure affecting OSS, CDN, container image services and more, which was later linked to a Shadowserver sinkhole, and the article outlines the incident timeline, root‑cause analysis, and practical mitigation steps for operators.
Alibaba CloudDNS outageShadowserver
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