DNS Troubleshooting Notes You Can Reuse
DNS Troubleshooting Notes You Can Reuse
DNS problems are often confusing because the failure may appear far away from the actual cause. A page may load slowly, fail completely, or resolve to the wrong server.
Start here
- Use
dig example.comto see the raw DNS answer. - Check whether your resolver is reachable.
- Compare the result from two different networks if possible.
Practical tip
When DNS is the suspect, test both the domain name and the IP address directly so you can separate name resolution problems from connectivity problems.
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