It saved me enough time, I had some to share about it.

Dans un univers où la magie a été remplacée par le mystérieux pouvoir de la ligne de commande, vous incarnez un personnage démuni qui n'aura d'autre choix que d'en servir pour reprendre le contrôle de sa vie.

Version originale (English) : mprat's Terminus game http://mprat.github.io/Terminus/ (code https://github.com/mprat/Terminus/)

a game to learn (or teach) how to use standard commands in a Unix shell - GitHub - phyver/GameShell: a game to learn (or teach) how to use standard commands in a Unix shell

Ensemble de documents réalisés pour la freeduc-sup.

If you're a programmer who's become fed up with software bloat, then may you find herein the perfect antidote.

This document explores methods for squeezing excess bytes out of simple programs. (Of course, the more practical purpose of this document is to describe a few of the inner workings of the ELF file format and the Linux operating system. But hopefully you can also learn something about how to make really teensy ELF executables in the process.)

Please note that the information and examples given here are, for the most part, specific to ELF executables on a Linux platform running under an Intel-386 architecture. I imagine that a good bit of the information is applicable to other ELF-based Unices, but my experiences with such are too limited for me to say with certainty.

Please also note that if you aren't a little bit familiar with assembly code, you may find parts of this document sort of hard to follow. (The assembly code that appears in this document is written using Nasm; see http://www.nasm.us/.)

MI-LXC : Mini-Internet using LXC

MI-LXC uses LXC to simulate a small-scale internet-like environment. I use this environment for (infosec) practical work (intrusion, firewall, IDS, etc.). The small memory footprint of LXC combined with differential images allows to run it on modest hardware.

It is based on the infrastructure-as-code principle: these scripts programmatically generate the target environment.

Example practical work using this environment (in french) :

Intrusion scenario
Firewall
IDS