kst.vn.			30 IN SOA ns1.pavietnam.vn. hostmaster.kst.vn. (
				2017112100 ; serial
				14400      ; refresh (4 hours)
				3600       ; retry (1 hour)
				1209600    ; expire (2 weeks)
				86400      ; minimum (1 day)
				)

kst.vn.			30 IN A	112.213.89.38

Name servers:
kst.vn.			30 IN NS ns1.pavietnam.vn.
kst.vn.			30 IN NS nsbak.pavietnam.net.
kst.vn.			30 IN NS ns2.pavietnam.vn.