Registro IPv4
host: in.com
class: IN
ttl: 300
type: A
ip: 124.153.64.203

Servidores DNS Principal (mname) y Secundario (rname)
host: in.com
class: IN
ttl: 300
type: SOA
mname: a1-142.akam.net
rname: hostmaster.in.com
serial: 2020083120
refresh: 3600
retry: 600
expire: 604800
minimum-ttl: 300

Servidor de Correo
host: in.com
class: IN
ttl: 300
type: MX
pri: 10
target: mx2.in.com