shell:$ nslookup -timeout=2 -retry=1 'ec2-13-56-33-8.us-west-1.compute.amazonaws.com' Server: 127.0.0.53 Address: 127.0.0.53#53 Non-authoritative answer: Name: ec2-13-56-33-8.us-west-1.compute.amazonaws.com Address: 13.56.33.8