shell:$ nslookup -timeout=2 -retry=1 'sm-in-f138.1e100.net' Server: 1.1.1.1 Address: 1.1.1.1#53 Non-authoritative answer: Name: sm-in-f138.1e100.net Address: 142.250.4.138 Name: sm-in-f138.1e100.net Address: 2404:6800:4003:c06::8a