Grazer Linuxtage Capture the Flag (#glt19ctf) is a hacking competition. Its a fun & legal way to play with hacking, and it provides a opportunity to practice for real-world security challenges.

CTF starts on Linuxtage Friday 15:00 and will end after 24 hours ...

Join at!


What is this? A CTF is a hacking contest. Its a safe, legal, and free (as in free beer) opportunity to learn about hacking or test your hacking skills.

Who can participate? Everyone with a computer and a Internet connection. You don't have to be present at Linuxtage - but its more fun if you are! We welcome people with different skill levels; a curious beginner is as much welcome as an experienced person. We also embrace different skill sets and diverse backgrounds by providing different categories and levels of challenges.

What kind of CTF? It's a Jeopardy-Style CTF. So you participate by browsing to our competition page, load a challenge, solve it, and submit the resulting flag!

Where can I participate? You already found the infopage! We will publish the competition webpage on the first day of Linuxtage, at the same address. The CTF will take place from Linuxtage Friday 15:00 to Saturday 15:00.

Is there a chat? Yes. Join our IRC channel #FuzzyLand on! (Or use the Webchat.)

Room IFEG042? We have a room at Linuxtage (from 13:00 on until ~20:00) and Saturday (from 10:00 on).It's at IAIK, in Inffeldgasse 16a on the ground floor. Visit us there to ask questions and maybe get some help to start your journey.

How do I prepare for a CTF? Be curious. Learn about web technology, programming, scripting, debugging, cryptography, or reverse engineering. Or play other CTFs. For example, we have a nothing-to-win-nothing-to-lose CTF running 24/7, check it out:

And join our Basic Hacking Workshop for Programmers at Linuxtage (13:00 at IFEG042).

And don't forget to bring your computer to Linuxtage - you are going to need it. ;-)

More information will be published here in the days before Linuxtage.