Finalizando la configuración

/etc/named.conf


options {
  directory "/var/lib/named";
};

zone "." {
  type hint;
  file "db.cache";
};

zone "0.0.127.in-addr.arpa" {
  type master;
  file "db.127.0.0";
};

zone "casa.red" {
  type master;
  file "db.casa.red";
};

zone "0.168.192.in-addr.arpa" {
  type master;
  file "db.192.168.0";
};