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

Non-authoritative answer:
Name:	otx.alienvault.com
Address: 3.168.73.100
Name:	otx.alienvault.com
Address: 3.168.73.71
Name:	otx.alienvault.com
Address: 3.168.73.95
Name:	otx.alienvault.com
Address: 3.168.73.53