unset DEBIANMIRROR  # nothing from Debian mirror
unset SYSTEM        # no system files monthly
unset KERNELDEB     # no compiled kernel packages
unset USERDATA      # no monthly backup of userdata
unset SETTIME       # time is set daily so monthly is useless
unset DEVICES_FILE  # links for devices in /dev weekly, not monthly
unset MOUNTPOINTS   # list of mountpoint in /m weekly, not monthly
unset VARWWW        # Verzeichnistiefe für /var/www
