How to set a different default page for the web server
Login as root to the console (command line) of your UCS server by using i.e. PuTTy for Windows
Set the starting page to the URL wanted by setting an ucr-variable (defalt is univention/):
root@dc1:~# ucr info apache2/startsite apache2/startsite: univention/ If the URL of the Apache server is accessed over the IP address or the hostname, a redirect to the UCS startpage is done in the standard setting. This variable allows the configuration of the subpage where the redirect points to. Categories: service-apache
Set the path as shown:
ucr set apache2/startsite=owncloud/
systemctl restart apache2
Browse to your server and you will be redirected to the correct path now.