shell:$ nslookup -timeout=2 -retry=1 'ec2-23-21-110-14.compute-1.amozonaws.com' Server: 75.98.161.224 Address: 75.98.161.224#53 Non-authoritative answer: Name: ec2-23-21-110-14.compute-1.amozonaws.com Address: 69.162.80.61