Registro IPv4
host: txtbook.top
class: IN
ttl: 3603
type: A
ip: 142.171.86.19

Servidores DNS Principal (mname) y Secundario (rname)
host: txtbook.top
class: IN
ttl: 21600
type: SOA
mname: ns1.dnsowl.com
rname: hostmaster.dnsowl.com
serial: 1719940010
refresh: 7200
retry: 1800
expire: 1209600
minimum-ttl: 600