shell:$ nslookup -timeout=2 -retry=1 'www.orientation-esi.dz'
Server:		75.98.161.224
Address:	75.98.161.224#53

Non-authoritative answer:
www.orientation-esi.dz	canonical name = orientation-esi.dz.
Name:	orientation-esi.dz
Address: 192.168.1.1