Dig

Query Internet domain name server

dig @<SERVER> <NAME> [TYPE]

Provide a short answer and show the IP address and port number

dig +short +identify @<SERVER> <NAME> [TYPE]

Sets the number of times to retry UDP queries and the timeout

dig +retry=<RETRIES> +timeout=<SECONDS> @<SERVER> <NAME> [TYPE]

Toggle tracing of the delegation path from the root name servers for the name being looked up.

dig +trace @<SERVER> <NAME> [TYPE]

Toggles the printing of statistics

dig +stats @<SERVER> <NAME> [TYPE]

Use TCP when querying name servers.

dig +tcp @<SERVER> <NAME> [TYPE]