Registro IPv4
host: topit.vn
class: IN
ttl: 3600
type: A
ip: 109.123.237.220

Servidores DNS Principal (mname) y Secundario (rname)
host: topit.vn
class: IN
ttl: 3600
type: SOA
mname: ns4.tenten.vn
rname: hostmaster.topit.vn
serial: 2023082220
refresh: 3600
retry: 900
expire: 604800
minimum-ttl: 3600

Servidor de Correo
host: topit.vn
class: IN
ttl: 3600
type: MX
pri: 10
target: mail.topit.vn