shell:$ nslookup -timeout=2 -retry=1 'ns-447.awsdns-55.com' Server: 127.0.0.53 Address: 127.0.0.53#53 Non-authoritative answer: Name: ns-447.awsdns-55.com Address: 205.251.193.191 Name: ns-447.awsdns-55.com Address: 2600:9000:5301:bf00::1