shell:$ nslookup -timeout=2 -retry=1 'ec2-3-77-131-39.eu-central-1.compute.amazonaws.com' Server: 1.1.1.1 Address: 1.1.1.1#53 Non-authoritative answer: Name: ec2-3-77-131-39.eu-central-1.compute.amazonaws.com Address: 3.77.131.39