shell:$ nslookup -timeout=2 -retry=1 'ns-1983.awsdns-55.co.uk' Server: 1.1.1.1 Address: 1.1.1.1#53 Non-authoritative answer: Name: ns-1983.awsdns-55.co.uk Address: 205.251.199.191 Name: ns-1983.awsdns-55.co.uk Address: 2600:9000:5307:bf00::1