Introduction
As the original purpose of a homepage this is mainly a collection of links I visit rather often or find in another way interesting.
Links
Infomania
Of course I use google. Maybe even more I use the google groups. It is full of information, every answer, that could be questioned can be found there. My personal postings are archived, too.
The Wortschatz of the University of Leipzig collects words from German newspapers. It has some other interesting features, too, but I usually just verify my bad spelling.
For a couple of years I use GNU/Linux as my operating systems of choice. The The Linux Documentation Project is full of HOWTOs, Guides and FAQs for this OS. I very often review to the Linux Network Administrator's Guide, 2nd edition.
My first (so called) Linux distribution was Linux from scratch (LFS for short). It offers just a basic (by far not minimal) system to continue work with the Beyond LFS-project, which is mainly a collection of the LFS hints (maintainers will blame me for this statement). While many people doubt the profit of LFS I learned a lot about the concepts of GNU/Linux then working with it (which mostly means building it). At least it helped my to build my first minimal Linux-router. Kernel, busybox, uclibc, udhcp, iptables, tcpdump and devfsd resulted in a small embedded system of about 3MB in size. Unfortunately I don't have it anymore, because updating such a thing is a PITA. Meanwhile due to the lack of time I use debian on productive 24/7 systems and gentoo (the distribution closest to the concepts of LFS) on desktops. Gentoo offers some documentation and a helpful forum, too.
My favorite window-manager is fvwm2. In a comparison it performs not so bad. It is slim and very customizable (276kB). You may want to have a look at my personal configuration. It has some nice features and makes fvwm to be operated nearly with keys only.
I am quite experienced in using Linux-netfilter for packet filtering (used to be miscalled "firewalling"). Oskar Andreasson offered a very comprehensive guide for iptables, the user front-end to netfilter. He considers to print a book (content only) from his tutorial, maybe you want to sign up you interest.
During dealing with WLAN I got another very eccentric view to IT-security: WLAN uses one shared medium (air) and everyone can plug in immediately. For securing such network I used IPsec very often, especially its Linux-implementation freeS/WAN or its successor strongSwan. I have documented an example documentation.
In 2004 I helped to build up and operate the network on the 6th Chemnitzer Linuxtag.
I am addicted in web-design with CSS, as you may see at this page (or not). I got some great inspiration by Eric A. Meyers Demos and Lim Chee Auns Examples. Another pretty impressing demonstration of the possibilities of CSS is the css Zen Garden: one HTML in very different designs by a simple change in stylesheet.
Fun
I was pretty impressed my a machine, that guesses any meaningful word by asking 20 Question.