Since now all Sterrewacht users have their own NextCloud server. You can use your Sterrewacht accounts to login.

Since, OwnCloud is not supported any more, you can “migrate” to the NextCloud server. The easiest way to do it is to create Online Accounts on your Linux desktop for both, OwnCloud and NextCloud, and then use your file manager to copy-paste (drag-and-drop) all the files from OwnCloud to NextCloud.

The Online Accounts is supported for some major desktops, such as Gnome, Cinnamon and KDE Plasma.

Since, all Sterrewacht accounts use 2FA, NextCloud provides a way to bypass it. Open NextCloud in your browser by clicking https://nextcloud.strw.leidenuniv.nl/ , login and in the top right corner click on the menu button with your initials.

Click on the Settings and on the new page click on Security tab. You should see a page like the following:

On this page click on the Add WebAuthn Device. You may be asked for a password and the device name. Then it will display a window with your user name and a pass phrase. You may want to store those somewhere, although they are not used anywhere explicitly. If you use a password manager in your browser, it may ask you to generate a Passkey.

Now you must be ready for the next step.

On your Linux PC open Online Accounts interface and create a new account by clicking on the NextCloud button. You can search for Online Accounts in your main search interface or access it via the main system settings interface.

Use https://nextcloud.strw.leidenuniv.nl/ for the Server field. For the Username and Password fields use your Sterrewacht credentials.

After this you may encounter notifications about not trustworthy certificate authority. If you have an option to accept the risk and continue or ignore, use those to move further. For those, who don't have such options, it might not be possible to continue. In this case contact helpdesk for another solution.

After succefully creating an Online Account for NextCloud, you must be able to use your file manager to access your files. It will be shown on the left pane of the file manager window.

For OwnCloud you can repeat the steps for NextCloud except that it does not require to bypass the 2FA, so you can skip that step and use your Sterrewacht credentials when creating an Online Account. You will need to use the NextCloud button in the Online Accounts and https://owncloud.strw.leidenuniv.nl/ as a server.

In case you get a window with a request to enter your keyring password and you can't skip it, provide the password. If you don't know the password you will need to disable it for this session. For this open Passwords and Keys application and delete the record with name Login (right click). It will be recreated during your next login.