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ByteFE
ByteFE
Oct 20, 2021 · Operations

Troubleshooting DNS Resolution Failure of goofy.app in Singapore Office Due to DNSSEC Misconfiguration

After users in Singapore reported inability to resolve the internal domain goofy.app, a systematic investigation revealed that DNSSEC misconfiguration—specifically an incorrect DS record—caused DNS resolution failures globally, while Chinese DNS servers succeeded due to disabled DNSSEC validation, and removing the faulty key resolved the issue.

DNSDNSSECDomain Resolution
0 likes · 8 min read
Troubleshooting DNS Resolution Failure of goofy.app in Singapore Office Due to DNSSEC Misconfiguration
ByteDance Web Infra
ByteDance Web Infra
Oct 13, 2021 · Operations

DNS Resolution Failure for goofy.app in Singapore Office Caused by DNSSEC Misconfiguration

An internal investigation revealed that the goofy.app domain could not be resolved from Singapore offices because a misconfigured DNSSEC DS record caused validation failures, while Chinese DNS resolvers ignored DNSSEC, leading to successful resolution there; removing the erroneous DS key restored global accessibility.

DNSDNSSECDomain Resolution
0 likes · 10 min read
DNS Resolution Failure for goofy.app in Singapore Office Caused by DNSSEC Misconfiguration