Registro IPv4
host: alfa-hr.com
class: IN
ttl: 14400
type: A
ip: 173.254.29.30

Servidores DNS Principal (mname) y Secundario (rname)
host: alfa-hr.com
class: IN
ttl: 21600
type: SOA
mname: ns1.justhost.com
rname: root.just2055.justhost.com
serial: 2025040400
refresh: 86400
retry: 7200
expire: 3600000
minimum-ttl: 300

Servidor de Correo
host: alfa-hr.com
class: IN
ttl: 14400
type: MX
pri: 0
target: mail.alfa-hr.com

Información TXT
host: alfa-hr.com
class: IN
ttl: 14400
type: TXT
txt: v=spf1 a mx ptr include:justhost.com ?all
entries: Array