I organized a cybersecurity workshop during my last few days at IQM. The attendees included: Myself, taking on more of a coaching role and solving some challenges in advance to provide hints. Some participants who had attended my previous events. a few that had previously tried and solved security challenges …

The challenges Hoe the season to be jolly! Been giving a few CTFs lately. It started with the disobey 2020 puzzle to get the hacker ticket. Then there was the OverTheWire's 2019 advent CTF. And finally this one, the SANS holiday hackmechallenge - KringleCon 2019. As of writing I got …

I'm attending this training in a week or so. This post will be updated as I go through the sections I want to check out before the training starts. https://www.redhat.com/en/services/training/rh413-red-hat-server-hardening Track security updates Understand how Red Hat Enterprise Linux produces updates and how …

http://www.cromwell-intl.com/unix/linux-break-in-howto.html On RHEL 6.2-based systems (like Scientific Linux 6.2): edit /etc/sysconfig/init # Set to '/sbin/sulogin' to prompt for password on single-user mode # Set to '/sbin/sushell' otherwise Like this: SINGLE=/sbin/sulogin Then if you add an 's' to the …

Went through the apache logs on my web-server and saw some access requests to my phpmyadmin page. It's probably a good idea to restrict access to this web based sql admin interface (in case there is an exploit I don't want somebody to use it on this). How to make …

Found out today that if you move to Finland and don't have a husband/wife/sambo that is in the Finnish system - you won't either be. So in my case where my Finnish sambo has a non-Finnish employer - I will not get a Kela card. So no snowboarding this season …