Ubuntu public DNS configuration sample

Hello!



if you deploying public DNS server at Ubuntu linux, you should refer this sample configurations.

public DNS server need to update its records to upper DNS server.



configuration file located /etc/bind/named.conf.options

================================================================================

ubuntu@ip-172-31-16-49:/etc/bind$ cat named.conf.options
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.

        recursion yes;
        allow-query { any; };

        forwarders {
                8.8.8.8;
                8.8.4.4;
         };

        forward only;

        //========================================================================
        // 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-enable yes;
        dnssec-validation yes;

        auth-nxdomain no;          # conform to RFC1035
        listen-on-v6 { any; };
};
================================================================================



Ubuntu Public DNS Server Configuration Sample.zip


Good luck!