It Is Always DNS, and Now You Will Know Why (kodekloud.com)
Follow one lookup from laptop to answer, learn what TTL really does, and pick up the dig commands that turn a two hour outage into a five minute fix.
DNS demystified! 🌐 Understanding the hierarchy, TTL, and resolving a query reveals why DNS changes take time, how Kubernetes handles DNS, and why CNAME vs. A records matter. Mastering DNS fundamentals is key to troubleshooting effectively.
