caldav synchronization, app token

[DerHolli]

Hello dear community!
I want use caldav synchronizer. https://caldavsynchronizer.org/de/
The opencloud is under https://cloud,opencloud.test/ reachable.
I have followed the instructions under https://docs.opencloud.eu/de/docs/admin/configuration/radicale-integration.
When testing the connection https://cloud.opencloud.test/caldav/ the SSH connection cannot be established. Can someone please tell me how to create an app token? I can't find a link to it.
Best regards!
Hotte

[JammingBen]

You can create app tokens on the account page in your OpenCloud. Click the avatar on the top right, then "Preferences". It should be located nearly at the bottom.

[micbar]

You seem to have no valid SSL certificate.

[DerHolli]

Thank you very much!
I'm running the cloud in a test environment. The browser then asks if I can connect to the cloud and use a self-signed certificate. That's how I understood it. To establish a secure connection with CalDavSynchronizer, I thought the token was needed. Am I wrong? Is there a guide to fixing this?

[micbar]

The caladav synchronizer needs the token, that is correct.

In addition to that, it doesn’t connect. If you let the browser connect despite of the self signed certificate that does not mean, that the caldav synchronizer will too - it is a different client.

Solution: valid ssl certificate or build your own local CA.

[DerHolli]

Thanks a lot! Often a few good keywords help. I am trying to set up my own Certificate Authority and have found a guide that I understand at
https://www.gluecksgriff-taschen.de/?p=620. I'll report back on whether I'm successful...

[micbar]

Mkcert might also be an option.