Articles about storage, backup, virtualization, technology, innovation, programming, leadership, management,... etc
Articles about storage, backup, virtualization, technology, innovation, programming, leadership, management,... etc
Troubleshooting Kubernetes networking issues is challenging because it spans multiple abstraction layers: pods, services, network policies, and the underlying infrastructure. Here’s a systematic approach. 1. Understand the Scope Identify the specific symptom: Pods can’t talk to each other? Services unreachable? External access broken? DNS lookups failing? Determine whether the problem hits one pod, one namespace, […]
Troubleshooting DNS resolution issues inside Kubernetes clusters can be challenging, but systematic steps can help identify and resolve the problem. Here’s a detailed guide: 1. Check Pod DNS Configuration Start by verifying the DNS configuration of the affected pod: – Get Pod’s DNS Info: bash kubectl exec -it <pod-name> — cat /etc/resolv.conf Look for: – […]
