Portal | Level: L2: Operations | Topics: DNS | Domain: Networking

DNS Split-Horizon Confusion¶

File	Purpose
symptoms.md	Problem statement and observable symptoms
questions.md	Diagnostic questions to work through
solution.md	Detailed root cause analysis and fix
grading.md	Self-assessment checklist
artifacts/	2 supporting file(s)

AWS Route 53 (Topic Pack, L2) — DNS
Case Study: CoreDNS Timeout Pod DNS (Case Study, L2) — DNS
Case Study: DNS Looks Broken — TLS Expired, Fix Is Cert-Manager (Case Study, L2) — DNS
Case Study: DNS Resolution Slow (Case Study, L1) — DNS
DHCP & IP Address Management (Topic Pack, L1) — DNS
DNS Deep Dive (Topic Pack, L1) — DNS
DNS Flashcards (CLI) (flashcard_deck, L1) — DNS
DNS Operations (Topic Pack, L2) — DNS
Incident Simulator (18 scenarios) (CLI) (Exercise Set, L2) — DNS
Networking Deep Dive (Topic Pack, L1) — DNS

Wiki Navigation¶