# debugging

A practical DNS troubleshooting guide for DevOps engineers — dig commands, nslookup patterns, common production failure modes, and how to diagnose each one.

Use git bisect to binary-search through commit history and pinpoint the exact change that introduced a bug — manually or fully automated.

A systematic approach to debugging CrashLoopBackOff in Kubernetes, covering the most common causes and the exact commands to diagnose each one.