shell:$ nslookup -timeout=2 -retry=1 'preinscription.mdn.dz' Server: 75.98.161.224 Address: 75.98.161.224#53 Non-authoritative answer: Name: preinscription.mdn.dz Address: 41.111.144.7 preinscription.mdn.dz canonical name = www.mdn.dz.