Registro IPv4
host: blog.org
class: IN
ttl: 1432
type: A
ip: 172.64.80.1

Servidores DNS Principal (mname) y Secundario (rname)
host: blog.org
class: IN
ttl: 1432
type: SOA
mname: ns1.cfrq.net
rname: hostmaster.cfrq.net
serial: 2026041400
refresh: 3600
retry: 3600
expire: 2419200
minimum-ttl: 3600

Servidor de Correo
host: blog.org
class: IN
ttl: 1433
type: MX
pri: 0
target: