Servidores DNS Principal (mname) y Secundario (rname)
host: f2s.com
class: IN
ttl: 600
type: SOA
mname: ns0.freedom2surf.net
rname: hostmaster.f2s.com
serial: 2022092700
refresh: 14400
retry: 3600
expire: 604800
minimum-ttl: 2560

Servidor de Correo
host: f2s.com
class: IN
ttl: 600
type: MX
pri: 10
target: b.mx.nildram.net

Servidor de Correo
host: f2s.com
class: IN
ttl: 600
type: MX
pri: 10
target: a.mx.nildram.net

Información TXT
host: f2s.com
class: IN
ttl: 300
type: TXT
txt: v=spf1 include:_spf.f2s.com ~all
entries: Array