shell:$ nslookup -timeout=2 -retry=1 'ns2.indosat.com' Server: 1.1.1.1 Address: 1.1.1.1#53 Non-authoritative answer: Name: ns2.indosat.com Address: 202.152.165.36 Name: ns2.indosat.com Address: 2407:0:0:2::2