Registro IPv4
host: gratisserver.nu
class: IN
ttl: 90
type: A
ip: 148.222.43.234

Servidores DNS Principal (mname) y Secundario (rname)
host: gratisserver.nu
class: IN
ttl: 3600
type: SOA
mname: ns1.server.pro
rname: support.server.pro
serial: 2026050604
refresh: 14400
retry: 3600
expire: 1209600
minimum-ttl: 60