lab5.cn.		30 IN SOA dns27.hichina.com. hostmaster.hichina.com. (
				2026011209 ; serial
				3600       ; refresh (1 hour)
				1200       ; retry (20 minutes)
				86400      ; expire (1 day)
				600        ; minimum (10 minutes)
				)

lab5.cn.		30 IN A	154.44.9.211

Name servers:
lab5.cn.		30 IN NS dns27.hichina.com.
lab5.cn.		30 IN NS dns28.hichina.com.