Sometimes an insecure configuration allows spammer to use the www-data user to send emails with you postfix server. Normally this…
20min Handson ZFS
ZFS is often called the last word in file systems. It is a new approach to deal with large pools…
solving Security Error while starting Java WebStart (e.g. IPMI Remote)
Most of the IPMI Systems out there still using good old Java based Remote Applications to connect to the remote…
Disk failure and suprises
Once in a while – and especially if you have a System with an uptime > 300d – HW tends…
Install CoreOS on Proxmox
Some words before we start… Hello Blog, it’s been a while. I still have to deliver the last part of…
Writing Munin Plugins pt3: some Stats about VMWare Fusion
In a project where we had the need for VMs being capable of doing CI for Java and also doing…
Adding Background Image to SVG Circles
If you want to create nifty Graphics and Animation in the web, you cannot avoid d3.js. D3.js uses SVG as…
Disable GitHub Image Cache for CI Build Badges
Since some time, GitHub caches Images, that are linked in Wiki-Pages or Readme files. That’s not optimal, when you want…
Writing Munin Plugins pt2: counting VPNd Connections
Preamble Every Munin Plugin should have a preamble by default: #!/usr/bin/env perl # -*- perl -*- =head1 NAME dar_vpnd a…
Writing Munin Plugins pt1: Overview
Writing your own Munin Plugins Around February this year, we at innoQ had the need for setting up a Mac…