ungthuvu.org.		30 IN SOA ns1.matbao.com. admin.matbao.com. (
				2022071101 ; serial
				7200       ; refresh (2 hours)
				300        ; retry (5 minutes)
				604800     ; expire (1 week)
				3600       ; minimum (1 hour)
				)

Name servers:
ungthuvu.org.		30 IN NS ns2.matbao.com.
ungthuvu.org.		30 IN NS ns1.matbao.com.