Articles about storage, backup, virtualization, technology, innovation, programming, leadership, management,... etc
Articles about storage, backup, virtualization, technology, innovation, programming, leadership, management,... etc
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: – […]
Troubleshooting DNS resolution issues is a core skill for infrastructure engineers. DNS underpins almost all network communication, so when it breaks, things stop working fast. Here’s how to isolate and fix the problem: 1. Verify the Problem Identify whether the issue affects specific systems, services, or the entire network. Try pinging the hostname (e.g., ping […]