Checking if a file exists in Puppet

Welcome to my next blog post about Puppet. This one covers something I found on another blog, so it is nothing I “invented” or something like that. During the last weeks, I spent much time writing Puppet manifests for several tasks, e.g. preventing logrotate from stumbling across wrong file permissions and stuff like that. At […]... Read More

When the FAI shell or any rescue environment does not show LVM volumes

Yesterday I had to boot a VM into a FAI PXE environment (I used “rescue” as a FAI action which drops me to a shell) because the file system on a LV reported several errors. For my own surprise, the FAI shell / FAI environment showed the LVM information when running pvscan, vgscan and lvscan, […]... Read More

Self-written article about SaltStack being published in the German Linux Magazine 06/2014

Since I have been working with Salt/SaltStack for a while now, it was my pleasure to summarize some of the gathered experience and send it over to the German Linux Magazine. As it turns out, the upcoming issue of the German Linux Magazine 06/2014 will contain my article about SaltStack. The issue will be available […]... Read More

Short update on the new SaltStack Cheat Sheet and freshly published articles

Hi there! I know it’s been a while since I updated my blog. During the last months, I was busy switching jobs, getting to know new technologies and meeting with friends. However, I still found some time to publish some new articles in the print media: “Abgetaucht – Raspberry Pi als Tor-Router und Web-Filter“, published […]... Read More
3Doodler drawing device with plastic pencils My first attempt to draw something with the 3Doodler

The 3Doodler: First time drawing

When the 3Doodler was started as a kickstarter campaign back in February 2013, I was one of the bakers since I was really excited about that project. Although I am not good at painting or any other art thing, I still wanted to support the idea of drawing motives with plastic. The 3Doodler takes a […]... Read More

Artikel im Linux User und Linux Magazin erschienen

Der Raspberry Pi und Leap-Motion-Controller finden derzeit viel mediale Aufmerksamkeit. Ich habe mir beide Geräte ebenfalls angesehen und meine Erfahrungen für den Linux User und das Linux Magazin nieder geschrieben. Im Linux User 09/2013 ist damit nun der Artikel “Tor zur Welt – Raspberry Pi als Tor-Proxy nutzen” erschienen. Der Artikel beschreibt die Einrichtung des […]... Read More

How to use the Leap Motion as a mouse on Linux

Since the Leap Motion has arrived in the homes of the fans and the curious, it has drawn a lot of attention. But while the support on Windows platforms is at least acceptable, the Leap Motion is not very well supported on Linux systems. At the moment, there is no official ready-to-use app for Linux […]... Read More

Leap Motion with Windows 8 and Fedora 17 (Linux) – some experiences

As you might already know, the Leap Motion is an input device for Windows, Mac and Linux systems. Once it is connected to a computer, it creates a space in your room in which it will recognize all your fingers and their movements. It is very similar to the Microsoft Kinect; however, the Leap Motion […]... Read More

Using environment variables in Puppet

Welcome back to the next part of my little series “Cfengine 3 vs. Puppet”.  When sticking to the order of the Cfengine 3 blog post series, our next topic would be something like “using the reporting feature of Puppet”, but unfortunately I do not know how to make use of a reporting feature in Puppet […]... Read More