DNS Config

Edit the named.conf.options file to add recursion and forwarder

vim /etc/bind/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.

        forwarders {
          8.8.8.8;  // Google DNS primary server
          8.8.4.4;  // Google DNS secondary server
          1.1.1.1;  // Cloudflare primary
          1.0.0.1;  // Coudflare secondary
        };

        //========================================================================
        // 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 no;
        recursion yes;
};
};