Registro IPv4
host: ushort.site
class: IN
ttl: 1800
type: A
ip: 216.24.57.1

Servidores DNS Principal (mname) y Secundario (rname)
host: ushort.site
class: IN
ttl: 3600
type: SOA
mname: ns45.domaincontrol.com
rname: dns.jomax.net
serial: 2025030200
refresh: 28800
retry: 7200
expire: 604800
minimum-ttl: 600