Jakob Boghdady jakoberpf

[troubleshooting] Ubuntu desktop freezing with raspberry pi

According to https://bugs.launchpad.net/ubuntu/+source/linux-raspi/+bug/1946368, this is a known bug on some Ubuntu kernel versions. Commonly, this issue happens when using high resolution screens (higher than 1920×1080@60Hz). Some users report this issue also playing high resolution videos and/or dragging applications to the sidebar. However, I found this problem happening in my Raspberry PI 4 model B even if simply browsing simple pages…

The issue comes from the default KMS, which appears to be unstable on Raspberry PI hardware. The workaround is enabling a “fake” KMS version, which limits the number of functions available for video output but avoids freezing.

Another problem that gets Ubuntu Desktop freezing on Raspberry PI comes with the USB power management module from recent kernels. It is a best practice to suspend devices (or part of them) when they are not used (idle mode). But with Raspberry PI and Ubuntu sometimes happens that, pluggi

[guide] keycloak authentication for proxmox

How to setup Proxmox to use Keycloak as authentication realm.

Proxmox Setup

root@proxmox:/etc/pve# cat domains.cfg
pam: pam
        comment Linux PAM standard authentication

[secret] backblaze windows vm setup

This is a WIP guide on how to setup a proxmox virtual machine with windows 10 or 11 to be used as backblaze backup client.

Create Windows 10/11 Proxmox VM Guide

kayomo

Notes

Use the english installer since the german does have issues with the virtuo drivers

alias k=kubectl
alias kn='k config set-context --current --namespace'
alias kall='k get all -o wide --show-labels'
alias kc='k config get-contexts'

export do='--dry-run=client -o yaml'
export now='--force --grace-period 0'

Some tips and common pitfalls for the CKAD exam.

auto shell configuration

Note: I am currently not sure if this would be allowed in the exam, as this is an external ressource.

# curl -s https://gist.github.com/6e3acd88f2f88394ad88e2dff1d8e530 | sh

	# [cheatsheet] networking/ports troubleshooting

	```bash
	apt install net-tools
	netstat -tulpn
	```

	## Sources

	[cyberciti.biz](https://www.cyberciti.biz/faq/what-process-has-open-linux-port/)