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Cockpit :9090 can login and dashboard is accessible to manage the local machine.
I add another host to manage it on this installation of cockpit.
Upon logout and logging back in, it's showing a blank page.
Version of Cockpit
323.1-1.el9_5
Where is the problem in Cockpit?
Overview
Server operating system
Red Hat Enterprise Linux
Server operating system version
9.5
What browsers are you using?
Firefox, Chrome, Edge
System log
journalctl did not capture anything critical, even after my attempt of enabling the debug mode for cockpit
-- Boot 01bdf8a78272433e8e458e511f960fb6 --
Nov 22 10:31:55 private01.cvad.unt.edu systemd[1]: Starting Cockpit Web Service...
Nov 22 10:31:55 private01.cvad.unt.edu systemd[1]: Started Cockpit Web Service.
I came to discover that this issue is caused by a custom build of RHEL 9(.5) with a CIS-Server Level 1 benchmark policy. I tested a RHEL 9.5 with no policy and it works. Unfortunately, I can't trace anything useful with the Cockpit debug logs.
I don't know what a "CIS-Level 1 benchmark policy" is -- can you roughly describe what that is? I suppose https://www.cisecurity.org/cis-benchmarks but that is very abstract. A kernel change, a browser plugin, some security restrictions, etc?
In the video, what's the difference between the left and right browser? they seem roughly equivalent, and at least talk to the same host IPs/names, but the right one is called "ScreenConnect" - some kind of remote desktop?
I think the bug happens at 2:27, right? The journal spits out a lot of TLS errors, and one more when you login. That may just be browser dependant, but it's worth taking a look at the browser console (Ctrl+Shift+J) -- open it on the login page, then log in, and see what happens. Can you please copy the messages here?
martinpitt
changed the title
Blank Page after adding another host
Blank Page after adding another host with CIS-Level 1 benchmark policy
Nov 26, 2024
Explain what happens
Version of Cockpit
323.1-1.el9_5
Where is the problem in Cockpit?
Overview
Server operating system
Red Hat Enterprise Linux
Server operating system version
9.5
What browsers are you using?
Firefox, Chrome, Edge
System log
journalctl did not capture anything critical, even after my attempt of enabling the debug mode for cockpit
Content of /etc/systemd/system/[email protected]
cockpit.issue-20241122_112221-Meeting.Recording.mp4
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