shell:$ nslookup -timeout=2 -retry=1 'www.usthb.dz' Server: 127.0.0.53 Address: 127.0.0.53#53 Non-authoritative answer: www.usthb.dz canonical name = portail2023.usthb.dz. Name: portail2023.usthb.dz Address: 41.106.128.70