thank you a lot for clarification how it is it with certificates and noVNC, when I added engine internal CA to the system it stared to work, but how is possible that it worked before yesteraday's update without trusted CA in my system.

If that file doesn't exist on the engine VM, then you might want to try checking the RPM database on that VM and make that sure you don't have broken packages. Run $dnf check and $rpm --verify -a

That should give you a list of what packages are broken and what files are missing / corrupted. You can then reinstall the affected packages.

The CA used by noVNC is the engine's internal CA. Regardless as to what apache is set to use on the engine host. Your paid CA cert is irrelevant here.

Longer explanation: The VNC connection originates from the hypervisor host running the target VM, not the engine VM itself. Essentially, noVNC is a web app that was pulled into the browser using a connection secured by your paid CA, then the web app established a new connection to a different server (the hypervisor host) using a different CA (the engine's internal CA).

-Patrick Hibbs

On Mon, 2022-10-03 at 20:47 +0200, Jirka Simon wrote:

Ahoj Michale,

I tried it and the result is the same. Message in engine log is strange file really doesn't exists '/usr/share/ovirt-engine/files/novnc/vendor/promise.js on the engone VM.

Certificate we use is valid with payed CA and its CA is in any browser by default. Maybe there can be something wrong when i changed default certificate to the custom one. But before today's morning upgrade everything worked fine.

let me check this.

Thank you

Jirka

On 10/3/22 14:24, Michal Skrivanek wrote:

There's been no interesting change between these versions. I would rather suspect certificates...can you try in brand new browser sessions and make sure the engine CA is imported?

On 3. 10. 2022, at 13:40, Jirka Simon <jirka@vesim.cz> wrote:

Hello there,

after update from 4.5.2.4 to 4.5.2.5 stopped to work noVNC client within browser, it writes Something went wrong, connection is closed in browser and then i th engine log is this message.

2022-10-03 13:34:55,772+02 INFO [org.ovirt.engine.core.utils.servlet.ServletUtils] (default task-13) [] Can't read file '/usr/share/ovirt-engine/files/novnc/vendor/promise.js' for request '/ovirt-engine/services/files/novnc/vendor/promise.js' -- 404

thank k you for any advice.

Jirka

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