shell:$ nslookup -timeout=2 -retry=1 'www.icanhazip.com'
Server:		75.98.161.224
Address:	75.98.161.224#53

Non-authoritative answer:
Name:	www.icanhazip.com
Address: 104.16.184.241
Name:	www.icanhazip.com
Address: 104.16.185.241
Name:	www.icanhazip.com
Address: 2606:4700::6810:b8f1
Name:	www.icanhazip.com
Address: 2606:4700::6810:b9f1