Error:
Service bind9 restart
 * Stopping domain name service... bind9   
   rndc: connect failed: 127.0.0.1#953: connection refused          [ OK ]
 * Starting domain name service... bind9                            [fail]
Fix:
Buka file named.conf.options yang berada pada /etc/bind/ isi file:


options {
        directory "/var/cache/bind";

        // If there is a firewall between you and nameservers you want
        // to talk to, you may need to fix the firewall to allow multiple
        // ports to talk.  See http://www.kb.cert.org/vuls/id/800113

        // If your ISP provided one or more IP addresses for stable
        // nameservers, you probably want to use them as forwarders.
        // Uncomment the following block, and insert the addresses replacing
        // the all-0's placeholder.

        // forwarders {
        //      0.0.0.0;
        // };

        //========================================================================
        // If BIND logs error messages about the root key being expired,
        // you will need to update your keys.  See https://www.isc.org/bind-keys
        //========================================================================
        dnssec-validation auto;

        auth-nxdomain no;    # conform to RFC1035
        listen-on-v6 { any; };
        allow-recursion {127.0.0.1; };
        transfer-source;
};
pada baris script ini transfer-source; beri tanda '*' (tanpa kutip) di belakangnya sebelum ';' , sehingga menjadi: transfer-source *;