shell:$ nslookup -timeout=2 -retry=1 'server-18-161-49-45.cgk50.r.cloudfront.net' Server: 1.1.1.1 Address: 1.1.1.1#53 Non-authoritative answer: Name: server-18-161-49-45.cgk50.r.cloudfront.net Address: 18.161.49.45