Collabora + Nextcloud as non-UCS-App


today I wanted to test Collabora and had some problems after installing (Browser-Error in Nextcloud after clicking an office document)

Then I remembered, that we didn’t install Nextcloud as an UCS-App. We used an ordinary Debian 9 for it.
Is it possible to use the Collabora App with a Nextcloud-Installation, which isn’t installed in UCS - even if I need to bend and break some things?

It is not meant for productive use, just for testing purposes.

If it’s too much of a hassle, I will just install Collabora on Debian as well.

Thanks for reading,

Here’s the browser error by the way:
I don’t see anything in the Apache Logs about it. If it’s another log, I don’t know which one.

Internal Server Error
The server encountered an internal error and was unable to complete your request.
Please contact the server administrator if this error reappears multiple times, please include the technical details below in your report.
More details can be found in the server log.

Technical details

    Remote Address:
    Request ID: j8HwWSKrqWZryZcuORbFhere

Hi Roland,

Did you import the root ca from UCS to nextcloud instance as outlined in the collabora ucs app ?

cat /etc/univention/ssl/ucsCA/CAcert.pem |
docker exec -i “$(ucr get appcenter/apps/nextcloud/container)”
bash -c ‘cat >> var/www/html/resources/config/ca-bundle.crt’

this you’ll have to adopt for your nextcloud installation

if not I think that can be the issue


Hi Christian,

yes I imported the UCS-Cert and I also fixed some DNS issues we had.

However, it’s still the same error message. :frowning:

EDIT: I think now that it was a firewall issue and had nothing to do with Univention.