shell:$ nslookup -timeout=2 -retry=1 'server-3-161-94-43.jnb51.r.cloudfront.net' Server: 75.98.161.224 Address: 75.98.161.224#53 Non-authoritative answer: Name: server-3-161-94-43.jnb51.r.cloudfront.net Address: 3.161.94.43