Registro IPv4
host: librosweb.com
class: IN
ttl: 7200
type: A
ip: 3.64.163.50

Servidores DNS Principal (mname) y Secundario (rname)
host: librosweb.com
class: IN
ttl: 86400
type: SOA
mname: ns1.dan.com
rname: dns.jomax.net
serial: 2023031300
refresh: 28800
retry: 7200
expire: 604800
minimum-ttl: 86400