shell:$ nslookup -timeout=2 -retry=1 'irtelcareapp.airtel.cd.fr5.wgserver.net' Server: 1.1.1.1 Address: 1.1.1.1#53 Non-authoritative answer: Name: irtelcareapp.airtel.cd.fr5.wgserver.net Address: 91.195.240.94