Registro IPv4
host: o-xxx.com
class: IN
ttl: 600
type: A
ip: 37.48.77.81

Servidores DNS Principal (mname) y Secundario (rname)
host: o-xxx.com
class: IN
ttl: 600
type: SOA
mname: ns1.magpiedns.com
rname: admin.o-xxx.com
serial: 2026040704
refresh: 86400
retry: 10800
expire: 604800
minimum-ttl: 300