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

Non-authoritative answer:
www.elearning.ensc.dz	canonical name = serv11.ensc.dz.
Name:	serv11.ensc.dz
Address: 41.111.179.28