acl trusted {
                localhost;
                192.168.1.0/24;
                172.0.0.0/8;
            };


options {
        directory "/var/cache/bind";
        recursion yes;
        allow-recursion { trusted; };

        forwarders {
        8.8.8.8;
        8.8.4.4;
                   };

        dnssec-validation auto;
        listen-on-v6 { any; };
        };