Halfdog's Playground

This site is some kind of collage of various things I am doing in my spare time. The main topics are:

IT-Security: Linux kernel/apps, networking, crypto.
- Start: Main page
- Latest: Apache httpd code execution via mod-setenvif
Electronics: Circuits, some to be connect to the PC, helper applications and related stuff, more ...
Java Games: Just two demos, where one is hardly useful, more ...

See also sitemap (under construction)

IT-Security

This is the most active part of this site. The various activities related to IT-security get their input from bugs and anomalies I discovered, when trying to understand some piece of software or when I attempted to use it for one of my private project, but the software did not work as expected. That is the reason, why most of the material is related to linux kernel/application bugs, network protocols mixed with crypto-fun. More...

Software and Hardware Project Resources

Read more about my ancient software and hardware projects from my 2000-2005 homepage. These page are still kept here just because there is still some references to it out there. When I have some time left, I will review/update or delete it.

Contact: me (%) halfdog.net
Last modified 20111119