Registro IPv4
host: dyndns.biz
class: IN
ttl: 300
type: A
ip: 132.226.44.1

Servidores DNS Principal (mname) y Secundario (rname)
host: dyndns.biz
class: IN
ttl: 86400
type: SOA
mname: ns1.dyndns.org
rname: hostmaster.dyndns.org
serial: 2586831312
refresh: 10800
retry: 1800
expire: 604800
minimum-ttl: 1800