tailieuhoctap.info.	30 IN SOA ns1.zonedns.vn. root.tailieuhoctap.info. (
				2025080906 ; serial
				1200       ; refresh (20 minutes)
				600        ; retry (10 minutes)
				1209600    ; expire (2 weeks)
				3600       ; minimum (1 hour)
				)

tailieuhoctap.info.	30 IN A	203.171.27.179

Name servers:
tailieuhoctap.info.	30 IN NS ns4.zonedns.vn.
tailieuhoctap.info.	30 IN NS ns2.zonedns.vn.
tailieuhoctap.info.	30 IN NS ns1.zonedns.vn.
tailieuhoctap.info.	30 IN NS ns3.zonedns.vn.