Registro IPv4
host: cn-bbs.com
class: IN
ttl: 3600
type: A
ip: 210.209.93.2

Servidores DNS Principal (mname) y Secundario (rname)
host: cn-bbs.com
class: IN
ttl: 3600
type: SOA
mname: 
rname: hostmaster.nameserver
serial: 46
refresh: 21600
retry: 1800
expire: 604800
minimum-ttl: 5

Servidor de Correo
host: cn-bbs.com
class: IN
ttl: 3600
type: MX
pri: 10
target: mxbiz2.qq.com

Servidor de Correo
host: cn-bbs.com
class: IN
ttl: 3600
type: MX
pri: 5
target: mxbiz1.qq.com