Registro IPv4
host: ufrj.br
class: IN
ttl: 6764
type: A
ip: 200.156.137.16

Servidores DNS Principal (mname) y Secundario (rname)
host: ufrj.br
class: IN
ttl: 7200
type: SOA
mname: ns.ufrj.br
rname: helpdns.tic.ufrj.br
serial: 2026032001
refresh: 3600
retry: 600
expire: 604800
minimum-ttl: 300

Servidor de Correo
host: ufrj.br
class: IN
ttl: 7200
type: MX
pri: 9
target: smtp.ufrj.br

Información TXT
host: ufrj.br
class: IN
ttl: 7200
type: TXT
txt: v=spf1 ip4:146.164.170.13/32 ip4:146.164.170.153/32 -all
entries: Array