Comment 3 for bug 516726

/etc/named.conf is in attachment, here is /etc/bind/named.conf.options, which is included:

options {
        directory "/var/cache/bind";
        pid-file "/var/run/bind/run/named.pid";

        auth-nxdomain no; # conform to RFC1035
        listen-on-v6 { any; };
        dnssec-enable yes;
        dnssec-validation yes;
};

named.conf.local is empty