0513nttc.com.		30 IN SOA ns1.dns.com. dnsadmin.dns.com. (
				1702884932 ; serial
				7200       ; refresh (2 hours)
				3600       ; retry (1 hour)
				1209600    ; expire (2 weeks)
				1800       ; minimum (30 minutes)
				)
0513nttc.com.		30 IN CNAME gray233.301.cn.com.
0513nttc.com.		30 IN CNAME gray233.301.cn.com.

gray233.301.cn.com.	1 IN A	127.0.0.20
0513nttc.com.		30 IN CNAME gray233.301.cn.com.