Title here
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Tag "Linux"
Notifications for failing Systemd services
When systemd services fail you usually don't really notice it unless it's a critical service. However there may be situations where it would be nice that you are mare aware of failing services.
How I manage my dotfiles
It is common practice to track dotfiles with a version control system like Git and to synchronize them across various hosts. There are various approaches, so I would like to tell you how I do it
Packet filtering in Linux - iptables, nftables and firewalld
Packet filtering is essential for network security and Linux offers this out of the box. There are different possibilities like iptables, nftables or firewalld, and a basic understanding of these is very useful.
Cheatsheets and KB
Until know I have my own cheatsheet section in may website. Even so writing them helped me to memorize some stuff, they are far from complete. Thus I decided to drop them in favor of community driven solutions.
Convert Manjaro Linux back to Arch Linux
Manjaro is e very popular distribution based on Arch. I tried it for several months ultimately decided to switch back to pure Arch. But how to do so, without a complete new installation?
Flameshot: A cool tool to make screenshots under Linux
Writing technical blogs often requires to do screenshot, where you may also want to highlight stuff of even obsfucate sensitive data.
Create an encrypted container in Linux
In case you have sensitive files which you want to additionally protect, you could add the to a zip file and encrypt the zip file. Or you might as well use an encrypted container
Automated OS update with kured for servers running k8s
If you are running a bare-metal cluster you probably run kubernetes on top of some linux os, these systems have to be regularly updated. But an update means sometimes that you have to reboot your servers. This also means during a reboot that particular node is node available to schedule workload.
How to know when your Linux system requires a reboot
When you manage Linux systems it's usually pretty clear how to reboot a system. But do you know how to check whether a system requires a reboot? Cause you don't want to reboot a system if it is not necessary
Linux Presentation Day (LPD)
Did you ever heard of Linux Presentation Day (LDP). If not, I will tell you about.
How to get a time difference of two log entries
I recently was tasked with a small problem on how to get a time difference of two log entries
How to rescue data from windows
My son has a Surface Go Tablet which suddenly stopped booting. Even after trying to uninstall patches etc. I could not bring it back, so I decided to help him to get the data from the tablet, so he can use it.
Unattended Installation of Linux and Windows
Unattended installation is the possibility to install an operating system without human interaction. Principally it is the same for Windows and Linux: An "answer file" which describes the configuration is provided as an input for the installer. These "answer files" provide any kind of setup options including how to partition disks and what packages/features to install.
.Net on Linux
.net core seems promising and can be used on linux as well. Let's have a look.