Recent posts

How to run a FreeBSD Virtual Machine on the RPI4 with QEMU. Part 1: QEMU setup

2 minute read


I got a Raspberry PI 4 a couple of months back and started it use it to run virtual machines.

This works great for GNU/Linux distributions but FreeBSD as a virtual machine didn’t work for me. When I tried to install FreeBSD or import a virtual machine image, FreeBSD wasn’t able to mount the root filesystem and ended with an “error 19”.

On the FreeBSD wiki, there are a few articles on how to use ARM64 FreeBSD with QEMU directly.

You find my journey of getting a FreeBSD Virtual Machine below.

I use Manjaro on my Raspberry PI, but the same setup will work with other GNU/Linux distributions.


OpenVAS on Kali GNU/Linux Part 1: How to install OpenVAS

6 minute read


OpenVAS is an opensource security scanner it started as a fork of Nessus which went from an opensource project to a closed source scanner.

I always prefer opensource software, for security tools, I even prefer it more… It nice to see/audit where the security data comes from, instead of the “magic” that is used by the close source software.

To scan for missing patches on your systems there are faster/better tools available that can be integrated into your build pipeline more easily. But OpenVAS is still a very nice network security scanner. Relying on one security tool is also not a “best security practice”.

Kali GNU/Linux has become the default Linux distribution for security auditing pen testing, it’s nice to have OpenVAS installed on your Kali GNU/Linux setup. If you just want to have OpenVAS available there is also a (virtual) appliance available from the OpenVAS developers ( Greenbone ).

You’ll find my journey to install OpenVAS on Kali GNU/Linux.


Best wishes 2021!

less than 1 minute read


$ sudo -i
# find / -name "*covid*" -exec rm -rf {} \;
# find / -name "*corona*" -exec rm -rf {} \;
# pkill -9 covid19
# pkill -9 corona
# reboot

Have fun!


32 bits (still) matters!

6 minute read

updated @ Mon Nov 16 08:16:30 PM CET 2020: Corrected the version when OPNsense dropped 32 bits support.

FreeBSD on alix

I used OPNsense on my pcengines Alix 2d13 firewall.

The Alix 2d13 is a nice motherboard with a Geode CPU 32 bits x86 CPU.

I migrated to OPNsense after pfSense dropped support for 32 bits. Unfortunately, OPNsense also dropped support for 32 bits CPUs in the 19.1.7 release 20.7 release. I decided to install FreeBSD on my Alix to use it as my firewall.

To make it possible to reinstall my Alix firewall, I installed FreeBSD on my Raspberry Pi 2 to use it as my firewall during the installation of FreeBSD on my Alix.

You’ll find my journey to install FreeBSD my an Alix firewall below.