sainw.cn.		30 IN SOA dns31.hichina.com. hostmaster.hichina.com. (
				2024042317 ; serial
				3600       ; refresh (1 hour)
				1200       ; retry (20 minutes)
				86400      ; expire (1 day)
				600        ; minimum (10 minutes)
				)
sainw.cn.		30 IN CNAME expired.hichina.com.
sainw.cn.		30 IN CNAME expired.hichina.com.