Registro IPv4
host: opticist.org
class: IN
ttl: 600
type: A
ip: 192.157.56.139

Servidores DNS Principal (mname) y Secundario (rname)
host: opticist.org
class: IN
ttl: 600
type: SOA
mname: ns1.magpiedns.com
rname: admin.opticist.org
serial: 2024100701
refresh: 86400
retry: 10800
expire: 604800
minimum-ttl: 300