cudo.cn.		30 IN SOA dns.bizcn.com. abuse.bizcn.com. (
				22         ; serial
				28800      ; refresh (8 hours)
				14400      ; retry (4 hours)
				14400      ; expire (4 hours)
				600        ; minimum (10 minutes)
				)

cudo.cn.		30 IN A	121.42.108.20

Name servers:
cudo.cn.		30 IN NS ns1.dns.com.cn.
cudo.cn.		30 IN NS ns2.dns.com.cn.