r/virtualization

I have a vCenter 5.5 setup at this office. I can't really change it. Apparently the certificate expired for it and I can't get into the machine via vSphere client. Since I can connect to the other machines directly to do things, I haven't given this much effort in resolving for a while (Probably close to a year or two (I know))

But yesterday, Our VMware View (4.6.3 version i believe) PCoIP machines stopped connecting to the remote machines they use. The machines just error out with a 0x1002 error, but if I use the client software if gives a notice that a certificate expired on 7/7. I have no clue how to get this certificate renewed, as I don't even know where it is (the machine with the admin server on it says it doesn't have any when i look at mmc, so I'm unclear).

Can anyone give me any advice on how to get these renewed (or at least the View one, so they can start using it again) - right now I have them RDPing into the machines and it's working, but I'd really like to get working again.

For VCenter, I've tried the options I had from googling.

I tried the following, but that didn't work:

Ensure the customers FQDN, DSN, IP, and all network configuration are correct. Run this VAMI script:
/opt/vmware/share/vami/vami_config_net

Note: This brings up a command line utility to check network configuration.

Create a file called allow_regeneration by running this command:
touch /etc/vmware-vpx/ssl/allow_regeneration

Stop the VPXD service by running this command:
service vmware-vpxd stop

Stop the vCenter Single Sign-On service by running the commands:
For vCenter Server 5.5: service vmware-sts-idmd stop
For vCenter Server 5.1: service vmware-sso stop

Regenerate the SSL certificate by running the command:
source vpxd_commonutils; generate_all_certificates replace

Remove the regeneration flag by removing the allow_regeneration file:
rm /etc/vmware-vpx/ssl/allow_regeneration

Reboot vCenter Appliance.

Any help would be welcome. Thanks.

https://preview.redd.it/6xmj0rzmy6kh1.png?width=1840&format=png&auto=webp&s=56a1a200f42be3a71630a3c87ba8923730bb623e

Hi can anyone help fix this issue. Main pc is win11 and trying to connect linux(ubuntu) VMware. tried on NAT and bridged network opening ssh server and enabling ufw nogo.

I installed WSL2 in order to use Docker.

The installation worked and Docker ran correctly after a system restart.

I was in the middle of streaming a show, paused it, and when I came back there was suddenly no audio. I performed the turn-it-off-and-on-again test to see if that would fix it.

Upon doing so, my monitor was met with odd purple and green artefacts.

Turned it off and and on again (again) and then found myself on an endless bootloop where it sometimes reaches the Windows logo and loading swirl, other times it seems sluggish throughout even the BIOS menu stuff before reaching the Windows bootloader.

There was nothing wrong with the PC before installing WSL and Docker. This particular install has been running for 2 years with no issues. I rarely use the pc for anything other than streaming / YouTube.

Any help regarding how to fix this (ideally retaining my windows install as it currently is) would be appreciated.

Any information about *why* WSL/Docker caused this issue would also be appreciated.

Specs (It's old but competent):

HPz220

I7-3770

24gb Ram

GTX 750ti

Windows 11 LTSC 24H2

The PC does not have hypervisor, etc. It is below the minimum requirements for Win 11 but Windows functions perfectly fine on it.

Edit: The PC now displays no picture when booting and the fan is going crazy.

I have virtualized UNRAID using Libvirt on Fedora. My question is on the CPU core allocations. I have the 8600G (6 cores, 12 threads).

If I want to allocate the absolute minimum, i.e. one physical core, does that mean I need to pass on two CPU cores? For example, cores 5 and 10 on my CPU are linked to the same physical core, so would I need to pass on both 5 and 10 to the VM for optimal performance?

At the OS level I seem to be unable to discern a physical core and hyperthread core through any system tool output, because I guess they are both virtual threads and neither is physical. I guess the OS also sees the cores virtualized by the CPU itself.

If I allocated just one core, say core 5, leaving core 10 for the host, would this be suboptimal and affect performance?

In the same vein, if I wanted to allocate two physical cores, does that means I need to pass on 4 threads to the VM?