shell:$ nslookup -timeout=2 -retry=1 'ns-open2.qq.com'
Server:		75.98.161.224
Address:	75.98.161.224#53

Non-authoritative answer:
Name:	ns-open2.qq.com
Address: 61.241.27.10
Name:	ns-open2.qq.com
Address: 43.159.167.130
Name:	ns-open2.qq.com
Address: 42.187.235.3
Name:	ns-open2.qq.com
Address: 43.159.167.131
Name:	ns-open2.qq.com
Address: 43.159.167.8
Name:	ns-open2.qq.com
Address: 43.130.172.21
Name:	ns-open2.qq.com
Address: 240e:e1:aa00:2001::3