What else happened in 2015

Posted: November 25th, 2015 | Author: | Filed under: privacy, random, security | No Comments »

Time to post a short update on things that happened, since I attended WWW in Florence 2015. In 2015, I devoted the majority of my research time on the development of the Usable Privacy Box (upribox). The upribox is a RaspberryPi-based WiFi router that automatically filters advertisement and optionally routes traffic through the Tor anonymity network. I presented the upribox at the CCC Camp in Berlin and ITSecX 2015.

nysos v3 – home theater PC

Posted: July 5th, 2015 | Author: | Filed under: personal, random | Tags: , , , , , | No Comments »

In June 2015, i replaced my old home theater PC with new hardware. This is the third time I upgraded my HTPC hardware, thus the name: nysos v3. I am now using an AMD Kabini APU, which resulted in quite some performance improvements for the full-encryption RAID5 storage of my setup. In May, I attended the WWW15 in Florence, and could also see the original painting that inspired my current online handly (dio)nysos .

Caravaggio at Uffizi Florence


Linux Home theater PC with AMD E-450 and XBMC

Posted: August 26th, 2014 | Author: | Filed under: personal, random | Tags: , , , , , , , , , , , , , , , | No Comments »

Since some years I tinker with the perfect Home theater PC (HTPC) and finally I am pretty happy with my setup. I use a Zotac AD11 PLUS with an additional external HDD Raid1. For the actual sound I use the combination of a Denon AVR-X1000 with Teufel Consono 35 Mk3 5.1 speakers.

I use Ubuntu Server 14.04 LTS (trusty) on my Zotac AD11 (AMD E-450 CPU) and switched to the open source ATI radeon driver which now supports VDPAU. A post on the XBMC forum provides straightforward instructions to setup XBMC with the open source radeon driver and AMD 350/450 chipsets. I had to make two additional fixes. The opensource radeon driver does not support multichannel sound but supports pass-through of common dolby audio formats, so in order to upscale stereo sound – I relied on my Denon receiver instead of XBMC/pulseaudio. The second issue I had to solve was the constant loss of the HTPC’s HDMI signal on my TV, once I switched HDMI inputs on my Denon receiver to a different device (“no signal”).

In order to fix the HDMI issues I created a custom HDMI udev rule in:


to start a custom script upon HDMI signal changes:

KERNEL=="card0", ACTION=="change", RUN+="/home/htpc/hdmi.sh"

The actual HDMI script simply uses xrandr to set the display output to HDMI-0.

export XAUTHORITY=/home/htpc/.Xauthority
export DISPLAY=:0.0
xrandr --output HDMI-0 --auto

さようなら Tokio

Posted: April 20th, 2013 | Author: | Filed under: personal, random, tokyo | No Comments »

Morgen Sonntag geht es zurück nach Barcelona. Tokio ist eine unglaublich spannende Stadt und wir haben die ganzen zehn Tage in der japanischen Hauptstadt verbracht. Unser Hotel war in Shibuya, einem sehr jungen Viertel, mit der berühmten Shibuya Kreuzung. Neben den Izakaya’s in Shibuya, haben mich vor allem das Shinjuku Golden Gai und die Aussicht vom Mori Tower beeindruckt.
Außer mit Sightseeing haben wir auch einige Zeit mit Shopping verbracht. Eine Geschäft dass ich sehr spannend gefunden habe, war die Don Quijote – Kette, die alles mögliche verkauft. Die Don Quijote Geschäfte sind von oben bis unten (mit Ramsch) gefüllt, Produkte werden auch teilweise mit Videos beworben:

Eine Auswahl von Tokio Schnappschüssen unter folgenden Link:

Google+ Foto Album Tokio 2013

Traveling to Tokyo soon

Posted: April 6th, 2013 | Author: | Filed under: personal, random, tokyo | No Comments »

Next week I will travel to Tokyo with a very good friend of mine. I am already pretty excited about the whole trip and might meet up with a bunch of nice guys in Tokyo. Also some of our research hackers are currently doing an internship at NII.

Hopefully I will post some pictures of the Japan trip in a few weeks and finally overcome my “bloger’s block”  🙂