"Drosselkom" - All your IP networks are belong to us

Seid Wochen entrüstet sich die Internet-Szene über die Pläne der Telekom, zukünftig Flatrates mit einer Volumenbegrenzung anzubieten. Nachdem es zunächst als Ungerechtigkeit dargestellt wurde, dass man...

FPGA based tabletop Pengo console

As a kid in the 1980ies, one of my favoured arcade games was Pengo, a maze action / puzzle game. I spent most of my pocket money playing it, and when I was introduced to dialup bulletin board systems in the same...

Dealing with Excel files from Common Lisp - Using ABCL and Apache POI

In my day job, I mostly program in Common Lisp. Most of what I do is file and database work which Common Lisp is pretty well-suited for. Sometimes, though, I have to deal with data that comes in Excel files, and in the...

Using Pogoplug as a OpenVPN server - with FreeBSD and VLAN

Recently, I needed to establish a VPN between my office, a colocated server and my home office. I generally prefer building networks on my own rather than buying cheap customer grade appliances, so here is what I've used. Router As...