sourcebook.cn.		30 IN SOA ns1.nowcndns.com. admin.nowcndns.com. (
				1745745545 ; serial
				7200       ; refresh (2 hours)
				3600       ; retry (1 hour)
				1209600    ; expire (2 weeks)
				1800       ; minimum (30 minutes)
				)

sourcebook.cn.		30 IN A	162.248.214.174

Name servers:
sourcebook.cn.		30 IN NS ns1.nowcndns.com.
sourcebook.cn.		30 IN NS ns2.nowcndns.com.