Yes, finally a new post! It took a long time, but as usual I had a lot of things to take care of first 
This site is now officially co-located, and therefore I had to migrate everything to this new server. Besides this I decided to move from Apache2 to Nginx and thus had to rewrite all configuration files.
As the title of this post gives away, I have switched jobs! I am happy I have found a job in IT-Security and will be working from now on as a (network) penetration tester. Now I have everything on track again, I plan to post more often.