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

Non-authoritative answer:
Name:	www.sndl.cerist.dz
Address: 193.194.76.4
;; communications error to 75.98.161.224#53: timed out