shell:$ nslookup -timeout=2 -retry=1 'www.ip138.com'
Server: 127.0.0.53
Address: 127.0.0.53#53
Non-authoritative answer:
www.ip138.com canonical name = www.ip138.com.lxdns.com.
Name: www.ip138.com.lxdns.com
Address: 153.43.41.20
Name: www.ip138.com.lxdns.com
Address: 157.185.168.15
| 
153.43.41.20