shell:$ nslookup -timeout=2 -retry=1 'external.fjnb9-1.fna.fbcdn.net'
Server:		75.98.161.224
Address:	75.98.161.224#53

Non-authoritative answer:
external.fjnb9-1.fna.fbcdn.net	canonical name = scontent.fjnb9-1.fna.fbcdn.net.
Name:	scontent.fjnb9-1.fna.fbcdn.net
Address: 66.8.1.17
Name:	scontent.fjnb9-1.fna.fbcdn.net
Address: 2001:4218:1002:0:face:b00c:0:a7