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

Check if an user exists with Cfengine 3

Often there is a need to add new users after deploying a new Linux box. In my case, I often have to add an user which takes care of the monitoring stuff (e.g. owning the Nagios plugins and executing them). The following little Cfengine 3 code snippet should help you to determine if a specific […]... Read More
sdiff example output in less

Tools for Linux sysadmins #3: sdiff

Many Linux sysadmins have in common that working with configuration and other text files is part of their daily work. In my case, I often migrate older Linux boxes to our own Ubuntu fork. Therefore it is required to also use old configurations where it makes sense. When configuring and testing the applications on the […]... Read More

Tools for Linux sysadmins #2: hwinfo, lspci and more

Ever needed to find out what hardware runs a specific server without knowing anything about this system? Well, this happens to me from time to time. But since we are Linux sysadmins we know that there are possibilities to find out what we are dealing with. Let’s assume you are currently in such a situation […]... Read More

Tools for Linux sysadmins #1: ethtool

Today I am starting a new series of blog posts: “Tools for Linux sysadmins” The first blog post will cover ethtool, one of the most useful tools to handle network cards since it gives you full control about the cards’ settings and other stuff. I mainly use it for two things: Reading out the firmware […]... Read More