Hey,
that’s just basic Apache access control: allow access from your local network’s IP addresses, deny access from everywhere else. Try putting something like this in e.g. /etc/apache2/conf-available/umc-access.conf
, then run a2enconf umc-access
and reload Apache:
<Location /univention/>
Require ip 192.168.0.0/24 # put your local network address range here
Require all denied
</Location>
Untested.
Kind regards,
mosu