vKVM blank popup

[jshirley1234]

Hi everyone.

I have a a M5 server with recent bios from late 2020, but cannot launch the vKVM from inside Linux RHEL Firefox 78.

I get a blank popup window with URL about:blank, no errors.

Note this was working from Chrome on Windows, but now the server is very remote and all I have is a Xvnc session on a RHEL 8 server to launch a browser.

I understand it just needs a HTML5 browser, so I believe it should work?

Any suggestions would be much appreciated!

James

[Steven Tardy]

Installed CentOS8 VM in the lab with Firefox 78.

Was able to open HTML KVM from a C220 M4 on CIMC version 4.0(2f).

Dug around and found a C240 M5 on CIMC version 3.1(3g) and was also able to open the HTML KVM.

Did you allow the pop-up window from the CIMC IP address within Firefox?

[jshirley1234]

Hi Steven, yes popups are enabled, it was blocked the first time.. the popup shows, it's just white background, with the "about" url.

Does it need any firewall holes other than tcp-443?

The certs are self signed (from what I can see), so there was a warning in Firefox when I first logged into the console. I had to add an exception in Firefox to proceed.

The CentOS client (and server) doesn't have any internet connectivity, including DNS, but assume that's not a problem.

James

[Kirk J · Accepted solution]

Yes, 2068 is required for KVM.

Kirk...

[jshirley1234]

Thanks this fixed it.