How to use bash completion for your own git aliases

If you are like me, you will likely work on several different projects on a daily basis – and all of them will be stored in git. Sure, git is easy to use. But typing the same set of commands multiple times, every day, can be quite annoying. Fortunately, using...

Locking your screen when you remove your U2F device

Universal Second Factor (U2F) devices were invented as a second factor for websites using two factor authentication. The website sends a challenge, the U2F device responds if its button is pressed. A small LED starts blinking, you press your button and thus confirm...

Having fun with U2F devices

Inspired by a recent article series in the German magazin c’t (1, 2, 3), I got my hands on two simple U2F devices to find out if their usage might help my work pattern. Imagine sitting in public transportation and having to retype your (root) password for each and...