options {
 directory "/var/named";
 forwarders{
  8.8.8.8;
  192.168.2.1;
 };
// allow-transfer{
//  192.168.2.5;
//  192.168.2.3;
//  };
//
};

zone "." {
 type hint;
 file "named.ca";
};
zone "curso.esp"{
 type slave;
 file "slaves/db.curso";
 masters { 192.168.2.5; };
};

zone "2.168.192.IN-ADDR.ARPA"{
 type slave;
 file "slaves/db.192.168.2";
 masters { 192.168.2.5; };

};