nic.baidu	IN	A	153.37.235.242
nic.baidu	IN	NS	cns1.zdnscloud.net.
nic.baidu	IN	NS	dns1.zdnscloud.info.
nic.baidu	IN	NS	ins1.zdnscloud.com.
nic.baidu	IN	NS	vns1.zdnscloud.biz.