Registro IPv4
host: posdb.com
class: IN
ttl: 3600
type: A
ip: 61.147.105.47

Servidores DNS Principal (mname) y Secundario (rname)
host: posdb.com
class: IN
ttl: 3600
type: SOA
mname: ns.edong.com
rname: root.ns.edong.com
serial: 2013012503
refresh: 10800
retry: 3600
expire: 3600
minimum-ttl: 86400

Servidor de Correo
host: posdb.com
class: IN
ttl: 3600
type: MX
pri: 0
target: mail.posdb.com