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

    // Listen on all interfaces
    listen-on port 53 { any; };
    listen-on-v6 port 53 { ::1; };

    // Allow queries from your local network (adjust subnet as needed)
    allow-query { any; };

    // Disable recursion for authoritative-only server
    recursion no;

    dnssec-validation auto;

    auth-nxdomain no;
};