jengelh” stems from the traditional username creation pattern used in scientific institutions — ancient systems seemed to have a limit of eight characters, and the usual pattern was taking one character from the given name, and seven from the surname, the 8th position being used for a digit (if needed) to enumerate users that would have the same login name.

Documents

libHX 2.x Documentation
Introduction to Xtables-addons (presentation)
Writing your own Netfilter modules (Xtables, iptables)
Towards the Perfect Ruleset (iptables)
Detecting and deceiving network scans with Chaostables
Implementation of a Turing simulator (English)
Implementation eines Turingsimulators (German)
(more...)

Software Projects

ccgfs – Transport-agnostic network filesystem
Chaostables – Detect, deceive and slowdown portscans
hxtools — Collection of tools and shell scripts
libHX – Library for commonly needed tasks in C
ttyrpld – Multi-platform tty keylogger/screenlogger
Vitalnix User Management Suite – Storage-independent useradd/etc.
Xtables and Xtables-addons – updated iptables
(more...)

Software repositories for SUSE are at http://jftp.medozas.de/ (auto-tinyurl; will cause an appropriate HTTP redirect).

Images

Netfilter packet flow and hook/table ordering
Netfilter Components
German keyboard with US/CCJ+DE mapping (The Perfect Keyboard)
GIT tree/changeset flow
(more...)

Web Articles

(continuously updated over time)
Recurring errors (C)
Recurring errors (Shell)
(more...)

SourceForge now offers Git as SCM

February 19, 2009

Finally. (That’s all.) (read more...)

The woes with terminal emulators

February 14, 2009

Generally I use xterm because that is available on about every UNIX workstation, or where not, “derivates” (allow me to use this terminology even if it may not apply) like rxvt are available on, for example, MSYS (system around MinGW for Win32). However, I wanted to try something different, as xterms only seemed support bitmap fonts (I later found out that it can use freetype). (read more...)

Game: Sid Meier's Civilization

December 29, 2008

Oh I gotta love 90s games. VMCheat list provided here. (read more...)

Game: LHX Attack Chopper

December 29, 2008

Classic '90s helicopter flight simulator, but there is few info about it, so here goes some interesting observations. (And VM Cheats!) (read more...)

VM Cheats

December 29, 2008

What are VM Cheats? VM cheat tables contain a game's state variables and their position in memory (and potentially savegame files, if I could find out), and with the use of a debugger or hypervisor, these variables can be externally influenced to cause the cheating. (read more...)

Only the 5 most recent entries are shown. There are more news items from 2008.

Archived posts

2009, 2008, 2007, 2006, 2005