h021.cn.		30 IN SOA ns1.dnsnw.com. admin.dnsnw.com. (
				1620336948 ; serial
				7200       ; refresh (2 hours)
				3600       ; retry (1 hour)
				1209600    ; expire (2 weeks)
				1800       ; minimum (30 minutes)
				)

h021.cn.		30 IN A	211.149.207.200

Name servers:
h021.cn.		30 IN NS ns1.dnsnw.com.
h021.cn.		30 IN NS ns2.dnsnw.com.