acl internals {
    // lo adapter 
    127.0.0.1;
    // CIDR for your local networks
    192.168.16.0/24;
};

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

	forwarders {
	 	9.9.9.9;
	 	8.8.8.8;
	 };

	allow-query {
		internals;
	};
	allow-query-cache {
		internals;
	};
   // enables recursive queries but on from our local nets and local hosts
   // Do not allow externals to do recursive queries.
	recursion yes;
	allow-recursion {
		internals;
	};
	allow-transfer {
		internals;
	};

	dnssec-enable no;
	dnssec-validation auto;

	listen-on-v6 { any; };
};