cauduong.edu.vn.	30 IN SOA ns1.zonedns.vn. root.cauduong.edu.vn. (
				2026012904 ; serial
				1200       ; refresh (20 minutes)
				600        ; retry (10 minutes)
				1209600    ; expire (2 weeks)
				3600       ; minimum (1 hour)
				)

cauduong.edu.vn.	30 IN A	103.28.36.216

Mail exchangers:
cauduong.edu.vn.	30 IN MX 10 mail.cauduong.edu.vn.

Name servers:
cauduong.edu.vn.	30 IN NS ns4.zonedns.vn.
cauduong.edu.vn.	30 IN NS ns2.zonedns.vn.
cauduong.edu.vn.	30 IN NS ns3.zonedns.vn.
cauduong.edu.vn.	30 IN NS ns1.zonedns.vn.