Registro IPv4
host: mmm.red
class: IN
ttl: 300
type: A
ip: 156.251.176.105

Servidores DNS Principal (mname) y Secundario (rname)
host: mmm.red
class: IN
ttl: 21600
type: SOA
mname: ns1.he.net
rname: hostmaster.he.net
serial: 2024032602
refresh: 86400
retry: 7200
expire: 3600000
minimum-ttl: 172800