LOADays 2013 and Kumina

loadays
April 8th, 2013

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

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Checking for rogue Apache modules

magnifying_glass
April 3rd, 2013

An Icinga check to detect rogue Apache modules.

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LOADays

loadays
March 1st, 2013

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!

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Booting a compressed FreeBSD system using TFTP inside KVM

freebsd
January 4th, 2012

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.

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Fixing hanging Crypto Stick (and other USB peripherals) problems

nitrokey
December 28th, 2011

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

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Spoofing MAC addresses using fakemac

code
December 14th, 2011

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.

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Debugging puppet queueing

puppet
December 9th, 2011

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 […]

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Check SSL certificates

ssl_checks
August 24th, 2011

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.

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Kumina designs, builds, operates and supports Kubernetes solutions that help companies thrive online. As Certified Kubernetes Service Partner, we know how to build real solutions.