shell:$ nslookup -timeout=2 -retry=1 'www.foad.ciffip.tn' Server: 1.1.1.1 Address: 1.1.1.1#53 Non-authoritative answer: www.foad.ciffip.tn canonical name = foad.ciffip.tn. Name: foad.ciffip.tn Address: 193.95.5.131