shell:$ nslookup -timeout=2 -retry=1 'ec2-34-249-218-154.eu-west-1.compute.amazonaws.com' Server: 1.1.1.1 Address: 1.1.1.1#53 Non-authoritative answer: Name: ec2-34-249-218-154.eu-west-1.compute.amazonaws.com Address: 34.249.218.154