Archive for the ‘Happy Hacking’ Category

(Not) rooting RK3066 systems

Friday, April 12th, 2013

Please note that I received some reports from people that tried to flash their RK3066 stuff – but it would not boot afterwards. And in fact, that’s what I experienced when I tried to flash my Minix Neo X5. (more…)

Rooting the Cube U30GT rk3066 android tablet

Friday, September 28th, 2012

I just bought a Cube U30GT Android tablet, based on the Rockchip RK3066 ARM chipset. Here are the instructions to root it under Linux. (more…)

Securing your server with Syslog-ng

Sunday, February 20th, 2011

There are many programs that help you secure your servers. There are simple firewalling programs and there are complex network intrusion detection systems. Depending on your demands, there seems to be a solution for everyone. Unless you’re picky and you think you can do better – like I did, when I wrote my own combination of syslog-ng and Linux iptables, skipping the middle man.

(more…)

Knoeien met de cijfers van het CBS

Wednesday, December 22nd, 2010

Het Centraal Bureau voor de Statistiek doet zijn onderzoekjes anno 2010 nog steeds met een Windows-programma: u moet Microsoft Windows gebruiken om de door het CBS gevraagde gegevens te verzenden. Dat levert een statistische vertekening in de cijfers op (“gebruik van open source software”); erger is het, dat het dataverzamelingsprogramma zo lek is als een mandje. (more…)

MFOC improved

Saturday, November 27th, 2010

When I started using MFOC, from a the description (in Dutch) at ov-chipkaart.org, I immediately ran into the problem described here. A bit strange seemed, that reading the card sector after sector with 10 different predefined keys did not crash the reader, while immediately after starting to try to calculate new keys, the reader would crash. (more…)

De perfecte misdaad

Friday, November 5th, 2010

Vandaag is er veel te doen over de hack die beschreven staat op www.ov-chipkaart.org. Wat nog even ontbreekt, is de methode om echt ondetecteerbaar gratis te reizen: de perfecte misdaad. (more…)

Walkera helicopters under Linux – part 3

Friday, July 18th, 2008

In part one we built a kernel module and put it somewhere in the filesystem. In part 2, we changed the inputattach utility to be able to use the new transmitter. Now we’re ready for the real part: install the Heli-X simulator.
(more…)

Walkera helicopters on Linux, part 2

Tuesday, May 20th, 2008

In part one we built a kernel module and put it somewhere in the filesystem. In this part, we’re going to tell the inputattach utility what to do with it.

(more…)

Walkera helicopters under Linux – part 1

Wednesday, May 7th, 2008

A couple of months ago, I bought a Walkera Dragonfly #04, just for fun. While actually flying an RC helicopter is great fun, sometimes you will want to use a simulator. As Linux is my platform of choice, I tried using the Walkera transmitter with a serial cable to run a heli-sim. I found out how to do that; here’s the results of my quest. This article will be split in 3 parts: kernel; utility; Heli-X. This is the first part.

I will use Ubuntu Linux 8.04 Hardy Heron for my explanation. You can use other versions of Linux – but please beware, you will need a pretty recent kernel to be able to build the kernel module.
(more…)