xz100.com.		30 IN SOA ns1.22.cn. dnsadmin.22.cn. (
				1778231405 ; serial
				3600       ; refresh (1 hour)
				300        ; retry (5 minutes)
				1209600    ; expire (2 weeks)
				1800       ; minimum (30 minutes)
				)

xz100.com.		30 IN A	121.40.34.37

Name servers:
xz100.com.		30 IN NS ns1.22.cn.
xz100.com.		30 IN NS ns2.22.cn.