Organizing literature

Here is a simple system (and some scripts) that I use to keep pdf and postscript files of papers organized.

Travel information Taiwan

Please find a collection of potentially useful information on travelling to and in Taiwan on a separate page on Taiwan travel.

Debian GNU/Linux on Android phones

The following guides explain how to install Debian GNU/Linux in a chroot environment on Android smartphones. The target of this installation is not to have X working with some fancy window manager (although the installation as described would be the first step towards it), but to turn the smartphone into an ARM development environment with access to the CPU's cycle counter.

Debian GNU/Linux on different Laptops

Here is some information about how to configure Debian GNU/Linux on different Laptops:

Pstricks graphics

Here's some LaTeX/pstricks code we used for graphics (mostly related to cryptography).

Generation of html code for the gallery

Each single album in our gallery isn't actually written by hand but automatically generated by a small bash script called gen_webalbum.sh. To use it just call it with the paths to the pictures you want to include as arguments.
Rescaling of the pictures for the gallery to 640x480 is done automatically (the originial pictures are of course not changed), so it doesn't matter which resolution the pictures have. This will produce a directory named gallery, in this directory there is a file named index.shtml. In this file change "EDITME" to whatever the title of the gallery should be.
The bash code should be easily adoptable to generate galleries for other websites for someone who is familiar with bash, the script needs the imagemagick tools, that on a Debian stystem can be installed with "aptitude install imagemagick".

Wireless configuration at Radboud University Nijmegen (eduroam)

Here is my configuration to make the eduroam Wifi work under Debian with my RU.nl account. Just put the following lines in /etc/network/interfaces:

iface eduroam inet dhcp
   wpa-ssid "eduroam"
   wpa-scan_ssid 1
   wpa-proto RSN
   wpa-key_mgmt WPA-EAP
   wpa-eap PEAP TTLS
   wpa-identity U123456@ru.nl
   wpa-password PASSWORD
   wpa-phase2 "auth=MSCHAPV2"
   wpa-ca_cert /etc/ssl/certs/AddTrust_External_Root.pem
   wpa-priority 10

You will have to obtain the certificate and place it in /usr/share/ca-certificates/ru.nl/AddTrustExternalCARoot.crt. Now you can log into the wireless network with

ifup wlan0=eduroam

assuming that wlan0 is your wireless interface.

Wireless configuration at TU/e

Thanks to a guide written by Willem Ligtenberg I finally managed to configure my wireless under Debian to work with the TU/e network. Just put the following lines in /etc/network/interfaces:

iface tue inet dhcp
   wpa-driver wext
   wpa-ssid tue
   wpa-key-mgmt IEEE8021X
   wpa-eap PEAP
   wpa-identity pschwabe
   wpa-anonymous_identity TUE_USERNAME # e.g. pschwabe
   wpa-password PASSWORD
   wpa-phase2 auth=MSCHAPV2
   wpa-ca_cert /etc/ssl/certs/GTE_CyberTrust_Global_Root.pem

Now you can log into the wireless network with

ifup wlan0=tue

assuming that wlan0 is your wireless interface.
If you want to use the eduroam network you can use the same configuration, just replace "tue" by "eduroam" in the interface name and in the wpa-ssid and add @tue.nl to your wpa-identity and wpa-anonymous-identity (e.g. pschwabe@tue.nl).