ar21.cn.		30 IN SOA ns1.myhostadmin.net. dnsconct.myhostadmin.net. (
				2012111624 ; serial
				43200      ; refresh (12 hours)
				300        ; retry (5 minutes)
				1209600    ; expire (2 weeks)
				3600       ; minimum (1 hour)
				)

ar21.cn.		30 IN A	211.149.209.106

Name servers:
ar21.cn.		30 IN NS ns1.myhostadmin.net.
ar21.cn.		30 IN NS ns5.myhostadmin.net.
ar21.cn.		30 IN NS ns2.myhostadmin.net.
ar21.cn.		30 IN NS ns4.myhostadmin.net.
ar21.cn.		30 IN NS ns3.myhostadmin.net.
ar21.cn.		30 IN NS ns6.myhostadmin.net.