DNS Monitoring: What to Track and Where to Watch It From
DNS monitoring asks your name servers the same question on a timer and checks the answer that comes back. Most teams aim it at their public domain and stop there. That covers half the problem. Your public domain and your internal resolver fail in different ways. A check from outside the building never sees the second one. In this blog, you'll see: By the end you'll know which half of your DNS nobody is watching. A DNS check sends a query and reads the reply. The reply can fail three ways.