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

Non-authoritative answer:
www.free.net	canonical name = portal.free.net.
Name:	portal.free.net
Address: 147.45.15.36
Name:	portal.free.net
Address: 2001:640:1:4::36