Registro IPv4
host: machinedb.com
class: IN
ttl: 3600
type: A
ip: 167.99.71.87

Servidores DNS Principal (mname) y Secundario (rname)
host: machinedb.com
class: IN
ttl: 1800
type: SOA
mname: ns1.digitalocean.com
rname: hostmaster.machinedb.com
serial: 1747777344
refresh: 10800
retry: 3600
expire: 604800
minimum-ttl: 1800