Forward BIND9 DNS to internet

From: http://superuser.com/questions/703171/setup-local-dns-server-that-merges-google-dns-and-opennic

// named.conf.options
options {
    directory "/var/cache/bind";
    forwarders { 8.8.8.8; 8.8.4.4; };
    forward only;
    dnssec-validation no;
    auth-nxdomain no;
};