shell:$ nslookup -timeout=2 -retry=1 'www.univ-setif.dz' Server: 1.1.1.1 Address: 1.1.1.1#53 Non-authoritative answer: www.univ-setif.dz canonical name = ns2.univ-setif.dz. Name: ns2.univ-setif.dz Address: 41.111.206.164