shell:$ nslookup -timeout=2 -retry=1 'saoplus.vn' Server: 127.0.0.53 Address: 127.0.0.53#53 Non-authoritative answer: Name: saoplus.vn Address: 172.64.80.1 Name: saoplus.vn Address: 2606:4700:130:436c:6f75:6466:6c61:7265