shell:$ nslookup -timeout=2 -retry=1 'www.telecom.tn'
;; communications error to 75.98.161.224#53: timed out
Server:		69.39.86.5
Address:	69.39.86.5#53

Non-authoritative answer:
www.telecom.tn	canonical name = telecom.tn.
Name:	telecom.tn
Address: 70.38.21.233