/etc/named/named.conf.local

zone "localhost" {
        type master;
        file "db/master.localhost";
};

zone "0.0.127.in-addr.arpa" {
        type master;
        file "db/rev.localhost";
};

zone "1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.ip6.arpa" {
        type master;
        file "db/rev6.localhost";
};