synnefo.in-addr.arpa.zone

$TTL 86400
$ORIGIN in-addr.arpa.
@       IN      SOA     ns.%DOMAIN%. admin.%DOMAIN%. (
                2012070900; the Serial Number
                172800; the Refresh Rate
                7200;  the Retry Time
                604800; the Expiration Time
                3600) ; the Minimum Time

@                       IN      NS      ns.%DOMAIN%.