Recent Posts

Famous Software Bugs

This is a quick article I had for quite a while as a draft. It might not be finished or have other problems, but I still want to share it. Mars Climate Oribiter Mars Climate Oribiter Type of Bug: Bad specification Description: The flight system software on the Mars Climate … Read More »

Change password in ATIS

Recently, the Heartbleed bug was discovered. It works like this: Heartbleed ExplanationFrom xkcd One effect of that bug is that you have to change your password. From xkcd You can do that from home via SSH. Just replace s_thoma by s_[your last name]: $ ssh [email protected] … Read More »

Linux access rights and attributes

RWX Files Linux files have three important access rights for files: Read Write Execute If you want to mark a file as executable, you can add the x-right: chmod +x When you want to mark a file as readable, you can dd the r-right: chmod +r … Read More »

Cyclic references kill Nautilus

I just wanted to answer an assignment and noticed that cyclic references kill Nautilus. What I did mkdir testFolder cd testFolder touch testFile.txt ln -s testFile.txt mySoftlink rm testFile.txt ln -s mySoftlink testFile.txt ls -l total 0 lrwxrwxrwx 1 moose moose 10 2013-01-20 21:20 … Read More »