options { 
directory "/var/cache/bind"; 
  forwarders { 
    128.6.238.13; 
     }; 
     forward first;
     auth-nxdomain yes; 
};

include "/etc/bind/rndc.key";
controls {
     inet 127.0.0.1 port 955
     allow { 127.0.0.1; } keys { "rndc-key"; };
};

zone  "." {
        type hint;
        file  "/etc/bind/db.root";
};

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

zone "0.0.127.in-addr.arpa" {
	type master;
	file "/etc/bind/0.0.127.in-addr.arpa.zone";
};

zone "linux.class" {
        type master;
	file "pdm/linux.class";
};

zone "5.168.192.in-addr.arpa" {
        type master;
        file "pdm/192.168.5";
};