These instructions describe a procedure that gives you access to the S: and P: drives via a web browser and Nextcloud. You do not need a VPN connection!
Open a web browser and open 
https://nextcloud.hnee.de and log in. Click on your profile picture on the far right and then on 
Settings.
On the left-hand side you will find the menu item "External storage". Enter your login data under "Global login information" and save it.
  For this, enter "P-Folder" as the first folder name, for example, and select "SMB/CIFS" under "Add storage" (the page will now expand). Under "Authentication," select "Global login credentials" instead of "Username." The entries for Host and Share depend on your location: on the Forest Campus, enter "truenas.hnee.de" as the Host and "users$" as the Share; on the City Campus, enter "truenas.hnee.de" as the Host and "users$" as the Share. Under "Remote subfolder," enter your login name. Finally, for "Domain," please specify "fh-eberswalde" .
 
Click on the tick on the right to save and check the details. If everything works, you will see a green marker on the left.

For the S drive, enter the following under "Server address":
- Exchange Directory
 - smb://stadt12.fh-eberswalde.de/austausch$
 
- Projects City Campus- mb://truenas.hnee.de/ProjekteStadtcampus
 
- Projects Forest Campus
 - smb://truenas.hnee.de/ProjekteWaldcampus
 
- Department of Forest and Wood Science (FB-FoWi)
 - smb://truenas.hnee.de/wum$
 
- Department of Sustainable Tourism (FB-HoTe)
 - smb://truenas.hnee.de/hote$
 
- Department of Landscape Use and Nature Conservation (FB-LaNu)
 - smb://stadt13.fh-eberswalde.de/s-lanu$
 
- Department of Business (FB-Wi)
 - smb://stadt13.fh-eberswalde.de/FB-Wi$
 
- SG Landscape Use and Nature Conservation (SG-LaNu)
 - smb://stadt12.fh-eberswalde.de/sg-lanu$
 
- SG Organic Agriculture and Market (SG-OeAM)
 - smb://stadt13.fh-eberswalde.de/oeam$
 
- SG Organic Farming and Landscape Management (SG-OeLV)
 - smb://stadt13.fh-eberswalde.de/oelv$
 
- SG Resource Management (SG-RM)
 - smb://stadt13.fh-eberswalde.de/sg-rm$
 
- SG Rural Development and Nature Conservation (SG-RuN)
 - smb://stadt13.fh-eberswalde.de/sg-run$
 
- SG Sustainable Nature Management (SG-SNM)
 - smb://stadt13.fh-eberswalde.de/sg-snm$
 
- SG Tourism
 - smb://stadt12.fh-eberswalde.de/SG-Tour$
 
- Geodata
 - smb://truenas.hnee.de/geodaten
 
 If you now switch back to the files view, you will see the two added folders for S and P:
Here you can see all folders and files to which you have access and you are authorized.