admin:/etc/bind# cat db.nubbox.com
;
; archivo BIND para zona nubbox.com
;
$TTL    604800
@       IN      SOA     nudbox.com. hostmaster.nudbox.com. (
                1       ; Serial
                          86400         ; Refresh
                           7200         ; Retry
                        1209600         ; Expire
                          10800 )       ; Negative Cache TTL

nudbox.com.    IN      NS      dns3.nudbox.com.
nudbox.com.    IN      NS      dns4.nudbox.com.
nudbox.com.    IN      MX      1 dns3.nudbox.com.
nudbox.com.    IN      MX      2 dns4.nudbox.com.

localhost       IN      A       127.0.0.1
nudbox.com.     IN      A       nudbox

dns3            IN      A       86.109.108.59
dns4            IN      A       86.109.108.60
dns5            IN      A       86.109.108.61
www             IN      A       nudbox
smtp            IN      A       nudbox