One of the most common communication types over the Internet involves DNS (Domain Name Service) traffic, in which hosts request the IP address based on the name of a website. There are two utilities that can help in the DNS troubleshooting process:
- Nslookup
- Dig (domain information groper)
These two utilities are very similar in functionality, so you can usually use one or the other. Nslookup and dig provide information about:
- IP addresses that are being resolved
- Canonical names configured in the DNS servers
- Cache timers
Nslookup . . .
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