Yesterday evening we returned from LOADays 2013 in Antwerp, This blogpost describes some things we learned and want to implement in the (near) future.

An Icinga check to detect rogue Apache modules.

We’re an official Gold Sponsor of LOADays! We’ll also have presence there, so if you’re attending, do stop by and say hi!

Over the years, we have performed some experiments at Kumina to run the FreeBSD operating system inside KVM. The main problem with FreeBSD was the lack of proper virtio drivers. As of recently FreeBSD gained support for virtio, renewing our interest in testing FreeBSD.

We had problems with our Crypto Stick ‘hanging’ randomly. An experimental patch from libusb fixes this. We have released packages with this fix.

One of our customers uses a piece of software that depends on the MAC address of the running system. Unfortunately this application misbehaves when used on Amazon EC2 cloud computing. Therefore we have written a small piece of software called fakemac.

Today we ran into a problem where the data put in ActiveMQ by the puppetmaster seemed corrupted in some way. When running the puppet queue daemon on the foreground (with –debug –verbose –no-daemonize), we noticed messages like these: info: Loaded queued catalog in 22.16 seconds debug: Searched for resources in 0.31 seconds err: Could not […]

This post is mostly a collection of commands that can help in juggling around SSL certificates and associated files. Check SSL certificates and make sure they are what you think they are. Especially when things do not go as expected, these commands are handy to have around.