shell:$ nslookup -timeout=2 -retry=1 'www.ip138.com'
Server:		1.1.1.1
Address:	1.1.1.1#53

Non-authoritative answer:
www.ip138.com	canonical name = www.ip138.com.lxdns.com.
Name:	www.ip138.com.lxdns.com
Address: 157.185.179.197
Name:	www.ip138.com.lxdns.com
Address: 157.185.179.12