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Knowledge Base & Operational DocumentationHow to Investigate a Kubernetes Pod That Cannot Resolve an Internal Service Name
11/10/2026
A pod may fail to resolve a service because of DNS configuration, namespace scope, network policy, or a cluster DNS issue. Application retries can make the symptom intermittent.
What to check
Check pod resolver settings, service name and namespace, DNS pod health, CoreDNS logs, and network policy. Compare lookup results from a healthy workload in the same cluster.
Recommended next step
Fix the verified DNS or namespace issue and monitor resolution after rollout. Informatix Systems can troubleshoot Kubernetes networking and platform operations.