The article has a certain age, but it should still be interesting. I read it already some time ago and always wanted to post it, but forgot. As before, better later than never.
IT-Security
16
Feb 10
Passive Network Analysis
18
Dec 09
GreenSQL – Defensor of the charts
GreenSQL is free software and is used to prevent successful attacks on SQL databases. GreenSQL is a firewall for database server and is interacting like a proxy between the applications which need the databases and the DB server itself. It analyses SQL commands and has two modes:
- Simulation – Reports suspicious queries to the administrator
- Blocking – Blocks suspicious queries by itself
The software is endowed with a mode, that allows it to “learn” to distinguish between safe and unsafe queries. This is managed by Whitelists. So the administrator should always be very carefully when checking the this list.
Official Project Website: http://www.greensql.net/
Source: Heise Online – Freie Datenbank-Firewall schützt PostgreSQL und MySQL
11
Aug 09
Fix your WordPress
Vulnerable code:
190: if ( empty( $key ) )
Fixed code:
190: if ( empty( $key ) || is_array ($key ) )
Source:
Article: Offene Sicherheitslücke gefährdet WordPress
Vulnerable & Fixed Code: WordPress Trac – Changeset 11798
[Full-disclosure]: WordPress <= 2.8.3 Remote admin reset password
Thanks to Laurent Gaffie for sharing.
Regards,
Prometheus
9
Aug 09
Teaching yourself GNU/Linux with the help of these:
Newbie’s getting started Guide to Linux - 20 pages
MakeUseOf’s very own Newbie’s Guide to Linux, tells you how to choose a distribution and then teaches you how to perform a basic Linux install. You can then use the guide to familiarize yourself with the Linux desktop and some basic commands.
Stefan did a great job in keeping it simple and to the point, the way beginners want it. Also don’t forget to check out our other MakeUseOf Manuals.
Introduction to Linux – A hands on Guide – 223 pages
Takes you from the absolute basics to basics. This hands on guide tells you everything right from logging in, basic file management, backup techniques up to basics of networking. It is what you need if you are having difficulty figuring out how to get to that resume file you saved just now. The guide explains Linux file structure and introduces to basic commands and text editors as well.
GNU/Linux – Command line tools summary – 101 pages
One important aspect of working in Linux is that you have to familiar with the command line. This book shows you how to use the command line in Linux to your advantage. Apart from the ins and outs of the shell, this book also introduces various commands and the situations where you would use them. There are chapters that deal with specific tasks and list various commands you can use to achieve the task. If you can study online, there is another excellent manual you can refer to.
Ubuntu Pocket Guide and Reference – 170 pages
Ubuntu is one of the most popular distributions, new users look up to when trying out Linux. If it is Ubuntu specific information that you are after then you should definitely check out Ubuntu Pocket Guide and Reference. The guide takes you from installing and configuring Ubuntu to adding and managing software and securing your system. A must read book if you use Ubuntu.
Rute User’s Tutorial and Exposition – 200 +
This one is not for the faint hearted! There is enough Linux juice in this book to keep even the intermediate to advanced users interested. The book begins humbly by presenting the basic commands and tools, however before you know it, you are learning everything from regular expressions to shell scripting to C programming to networking.
There is plenty of great material out there if you are trying to learn Linux, similar to these downloadable ebooks to teach yourself everything you ever wanted to know about Linux. If you have read a book or a tutorial that you found particularly useful, feel free to tell us about it in the comments below.
Source: http://www.makeuseof.com/tag/5-downloadable-books-to-teach-yourself-linux/
Hope that I was able to help some guys of you out there,
Prometheus
5
Aug 09
“Hackers, priates, cyberpunks : la résistance du web”
I’m not a big fan of the French language, but the article is brilliant. (Pictures & Videos included)
Greetings from a,
Hacker

