Servidores DNS Principal (mname) y Secundario (rname)
host: cnc.com.tw
class: IN
ttl: 1800
type: SOA
mname: dns5.h3.com.tw
rname: hostmaster.h3.com.tw
serial: 55
refresh: 1800
retry: 1800
expire: 1800
minimum-ttl: 1800

Servidor de Correo
host: cnc.com.tw
class: IN
ttl: 3600
type: MX
pri: 10
target: mail.h3.com.tw