Dhcp and dns update

["Jesus arteche" <chechu.linux@gmail.com>]

hey,

I have a dhcp server and a bind9 installed in my server...both works perfectly...but now i want teh dhcp server update the bind... i think my conf its right but it doesnt work...my conf files

dhcp.conf

# Dispositivos moviles
subnet 192.168.x.0 netmask 255.255.255.0 {
         ##DE MOMENTO NO ACEPTA NINGUN CLIENTE DE FUERA, HASTA QUE CONFIGURE EL$
        deny unknown-clients;
        range 192.168.x.145 192.168.x.159;
        }
##PC's de xxxxxx
group{
        server-identifier xxxxx-server;
        option domain-name "xxxxx.es";
        option routers 192.168.x.250;
        option domain-name-servers 192.168.x.249 , 192.168.x.246;
        option ntp-servers xxxxx-server;
        next-server 192.168.x.249;
        filename "pxelinux.0";
        default-lease-time 8640000;
        ddns-update-style interim;
        ddns-domainname "xxxxx.es";
        use-host-decl-names on;
        ddns-updates on;
        #Cano
        host PCxxxxx1 {
                hardware ethernet 00:13:8F:x:x:x;
                fixed-address 192.168.x.65;
                option host-name "PCxxxxxx1";
                update-static-leases on;
                }
....
}

named.conf

include "/etc/bind/named.conf.options";

// prime the server with knowledge of the root servers
zone "." {
        type hint;
        file "/etc/bind/db.root";
};

// be authoritative for the localhost forward and reverse zones, and for
// broadcast zones as per RFC 1912

zone "localhost" {
        type master;
        file "/etc/bind/db.local";
};

zone "127.in-addr.arpa" {
        type master;
        file "/etc/bind/db.127";
};

zone "0.in-addr.arpa" {
include "/etc/bind/named.conf.options";

// prime the server with knowledge of the root servers
zone "." {
        type hint;
        file "/etc/bind/db.root";
};

// be authoritative for the localhost forward and reverse zones, and for
// broadcast zones as per RFC 1912

zone "localhost" {
        type master;
        file "/etc/bind/db.local";
};

zone "127.in-addr.arpa" {
        type master;
        file "/etc/bind/db.127";
};

zone "0.in-addr.arpa" {
type master;
        file "/etc/bind/db.0";
};

zone "255.in-addr.arpa" {
        type master;
        file "/etc/bind/db.255";
};
include "/etc/bind/named.conf.local";



include "/etc/bind/rndc.key";

key "TRANSFER" {
algorithm hmac-md5;
        secret "FCi9fs/xGz/61FX3GTX8fw==";
};

server 192.168.x.246 {
        };


# Configure the logging options
logging {



    channel default {
        # Send logs to the syslog 'local0' facility
        syslog          local0;
        # Log messages of severity 'info' or higher
        severity        debug;
        print-category  yes;
        print-severity  yes;
    };



    # Ignore logs about misconfigured remote servers
    category lame-servers { null; };

    # Default logging options
        category default { default; };
};

server 192.168.x.233 {
        };


There are two secondary dns servers x.233 y x.246


named.conf.local

zone "xxxx.es" {
        type master;
        file "/etc/bind/zones/master_xxxxx.es";
        allow-update { key "rndc-key"; };
        notify yes;
};
zone "." IN{
       type slave;
       file "/etc/bind/db.root";

masters {  58.6.115.46; 216.87.84.214;62.42.230.24; 62.42.63.52;87.216.1.65;};

       allow-transfer { any; };
       notify no;
};



named.conf.options

options {
        directory "/var/cache/bind";

         forward first;
         forwarders {
                62.42.230.24;
                62.42.63.52;
                87.216.1.65;
                87.216.1.66;
                62.14.63.145;
                62.14.2.1;
                80.58.61.254;
                80.58.61.250;
                195.5.64.2;
                217.76.128.4;
                217.76.129.4;
         };

        auth-nxdomain no;    # conform to RFC1035
        dnssec-enable yes;
        listen-on port 53 { 192.168.23.249; };
        listen-on-v6 port 53 { 192.168.23.249; };
       dump-file       "/var/cache/bind/cache_dump.db";
        statistics-file "/var/cache/bind/named_stats.txt";
        memstatistics-file "/var/cache/bind/named_mem_stats.txt";
       allow-query     { any; };
        stacksize 1100M;
        datasize 1000M;


};

In the file dhcpd.leases not appear any leases.
someone knows what is wrong?

thanks