CoreDNS

How do I troubleshoot Kubernetes networking issues?

Troubleshooting Kubernetes networking issues can be challenging because it involves multiple layers of abstraction, such as pods, services, network policies, and underlying infrastructure. Below is a systematic approach to resolving Kubernetes networking issues: 1. Understand the Scope Identify the specific issue: Are pods unable to communicate with each other? Are services unreachable? Is external access […]

How do I troubleshoot DNS resolution issues inside Kubernetes clusters?

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: – […]

Scroll to top