shell:$ nslookup -timeout=2 -retry=1 'ec.sascdn.com' Server: 1.1.1.1 Address: 1.1.1.1#53 Non-authoritative answer: ec.sascdn.com canonical name = cs410.wac.edgecastcdn.net. Name: cs410.wac.edgecastcdn.net Address: 93.184.216.16