Unnamed

options {
        directory "/var/named";

        // uncomment the following lines to turn on DNS forwarding,
        // and change the forwarding ip address(es) :
        //forward first;
        //forwarders {
        //      123.123.123.123;
        //      123.123.123.123;
        //};

        listen-on-v6 { none; };
        //recursion no;
        //listen-on { 192.168.0.100; };

        // to allow only specific hosts to use the DNS server:
        //allow-query {
        //      127.0.0.1;
        //};

        // if you have problems and are behind a firewall:
        //query-source address * port 53;
        pid-file "/var/run/named/named.pid";
};

// Briefly, a zone which has been declared delegation-only will be effectively
// limited to containing NS RRs for subdomains, but no actual data beyond its
// own apex (for example, its SOA RR and apex NS RRset). This can be used to
// filter out "wildcard" or "synthesized" data from NAT boxes or from
// authoritative name servers whose undelegated (in-zone) data is of no
// interest.
// See http://www.isc.org/products/BIND/delegation-only.html for more info

//zone "COM" { type delegation-only; };
//zone "NET" { type delegation-only; };

zone "." IN {
        type hint;
        file "named.ca";
};

zone "localhost" IN {
        type master;
        file "pri/localhost.zone";
        allow-update { none; };
        notify no;
};

zone "127.in-addr.arpa" IN {
        type master;
        file "pri/127.zone"; 
        allow-update { none; };
        notify no;
};

// Dominio:     NULLHOSTING.NET
zone "nullhosting.net" {
        type master;
        file "master/db.nullhosting.net";
        allow-transfer { ip_address_for_slave_server; };
};