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, […]

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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 […]

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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 […]

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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 […]

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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 […]

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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 […]

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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 […]

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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 […]

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Today I added two new cheat sheets: RHCE Cheat Sheet RHEV/RHCVA Especially the RHEV/RHCVA cheat sheet is not very comprehensive, but maybe it is still a little helpful when learning for the RHCVA exam. Enjoy!

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Today I noticed that it might be useful to backup some folders on one of my VMs from time to time. At first I thought about creating a new cron job, but then I noticed that Cfengine 3 is running on that VM. So – why not letting Cfengine 3 do all the work? Writing […]

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