options {
 directory "/var/named"; %%//%% aunque esté enjaulado, no lo sabe...
 forwarders{
  8.8.8.8;
  8.8.4.4;
 };
 allow-transfer{
  192.168.2.152;
  };
allow-notify {192.168.2.152;};
};
 
zone "." {
 type hint;
 file "named.ca";
};

zone "curso.esp"{
 type master;
 allow-update {
 192.168.2.0/24;
}; 
 file "db.curso";
};

zone "2.168.192.IN-ADDR.ARPA"{
 type master;
 allow-update {
  192.168.2.0/24;
}; 
 file "db.192.168.2";
};