Registro IPv4
host: bluetelecom.com.mx
class: IN
ttl: 3600
type: A
ip: 52.171.217.231

Servidores DNS Principal (mname) y Secundario (rname)
host: bluetelecom.com.mx
class: IN
ttl: 3600
type: SOA
mname: skydnspro01.sky.com
rname: hostmaster.sky.com
serial: 20
refresh: 900
retry: 600
expire: 86400
minimum-ttl: 3600