Troubleshooting MicroK8s DNS Issues
A quick checklist for when pods cannot resolve external domains: CoreDNS, upstreams, and the one change that fixes most cases.
→ ReadMost entries are practical: what broke, the quickest reliable check, and what I changed to prevent a repeat.
A quick checklist for when pods cannot resolve external domains: CoreDNS, upstreams, and the one change that fixes most cases.
→ ReadA short note on controlled restarts, what they solve, and what they hide.
→ ReadA simple rule: set log caps on day one. Notes on sane defaults and how to validate what is actually active.
→ ReadHairpin NAT can break local testing of public endpoints. A quick mental model and practical workarounds.
→ ReadKeep IPv4 and IPv6 endpoints independent, know what IP source you are using, and verify the record you think you updated.
→ ReadA short sequence of commands and checks that catches most issues quickly: CPU, memory pressure, disk, DNS, and routing.
→ Read