Registro IPv4
host: dtm.dns1.us
class: IN
ttl: 90
type: A
ip: 89.43.33.36

Servidores DNS Principal (mname) y Secundario (rname)
host: dtm.dns1.us
class: IN
ttl: 90
type: SOA
mname: ns1.changeip.org
rname: noc.changeip.com
serial: 145
refresh: 3600
retry: 150
expire: 604800
minimum-ttl: 31