shell:$ nslookup -timeout=2 -retry=1 's1.dv188best.com' Server: 75.98.161.224 Address: 75.98.161.224#53 Non-authoritative answer: Name: s1.dv188best.com Address: 216.150.1.129 Name: s1.dv188best.com Address: 216.150.16.65