shell:$ nslookup -timeout=2 -retry=1 'whois.apnic.net' Server: 1.1.1.1 Address: 1.1.1.1#53 Non-authoritative answer: Name: whois.apnic.net Address: 207.148.30.186 Name: whois.apnic.net Address: 2001:19f0:5:3a2:5400:5ff:fe36:e789