shell:$ nslookup -timeout=2 -retry=1 'm.baidu.com'
Server:		75.98.161.224
Address:	75.98.161.224#53

Non-authoritative answer:
m.baidu.com	canonical name = wap.n.shifen.com.
wap.n.shifen.com	canonical name = wap.wshifen.com.
Name:	wap.wshifen.com
Address: 103.235.46.39
Name:	wap.wshifen.com
Address: 103.235.46.92