shell:$ nslookup -timeout=2 -retry=1 'lookaside.fbsbx.com'
Server: 75.98.161.224
Address: 75.98.161.224#53
Non-authoritative answer:
lookaside.fbsbx.com canonical name = scontent.xx.fbcdn.net.
Name: scontent.xx.fbcdn.net
Address: 57.144.172.128
Name: scontent.xx.fbcdn.net
Address: 2a03:2880:f356:80:face:b00c:0:3
| 
57.144.172.128