Registro IPv4
host: sieuthibepnhapkhau.com.vn
class: IN
ttl: 3600
type: A
ip: 45.252.250.21

Servidores DNS Principal (mname) y Secundario (rname)
host: sieuthibepnhapkhau.com.vn
class: IN
ttl: 3600
type: SOA
mname: ns1.matbao.vn
rname: admin.matbao.com
serial: 2020110503
refresh: 18000
retry: 1800
expire: 1209600
minimum-ttl: 1800