Registro IPv4
host: william.com
class: IN
ttl: 1800
type: A
ip: 23.12.9.101

Servidores DNS Principal (mname) y Secundario (rname)
host: william.com
class: IN
ttl: 21600
type: SOA
mname: a1-222.akam.net
rname: hostmaster.william.com
serial: 2024020103
refresh: 3600
retry: 600
expire: 604800
minimum-ttl: 300