+print( "# Permit time synchronization with our time source, but do not\n");
+print( "# permit the source to query or modify the service on this system.\n");
+print( "restrict default kod nomodify notrap nopeer noquery\n");
+print( "restrict -6 default kod nomodify notrap nopeer noquery");
+print( "restrict 127.0.0.1");
+print( "restrict -6 ::1");
+