shell:$ nslookup -timeout=2 -retry=1 'ns2.celcom.net.my' Server: 127.0.0.53 Address: 127.0.0.53#53 Non-authoritative answer: Name: ns2.celcom.net.my Address: 203.82.64.14 Name: ns2.celcom.net.my Address: 2404:160:0:2:0:64:12:0