OpenShift Node-to-Node encrypted network mesh with WireGuard and Ansible

Connecting nodes with masters is usually secured with TLS. But there's more traffic than just between nodes and masters. This article describes how to set up a WireGuard mesh network between all nodes in a cluster by using Ansible.


Tencrypt: Hardening OpenShift by Encrypting Tenant Traffic

The aim of this work is the research of possibilities which allow automatic and transparent encryption of internal network traffic between applications of Tenants in a multi-tenant OpenShift infrastructure.


Rückblick auf die Bits & Bäume 2018

Bits & Bäume, die erste Öko-Techie-Konferenz ihrer Art! Rückblick, Eindrücke, meine Einreichung und einige Ideen für 2019.


Dresden: Vier Tage, vier Museen

Sommerpause und gutes Wetter laden ein, die Stadt zu erkunden: ein Blick in vier Museen Dresdens.


Using a PCI graphics card in KVM/QEMU on Debian Stretch

Are you looking to use your graphics card or another PCI device in your computer inside a virtual machine? In this article I'll explain how I did it with KVM/QEMU on Debian Stretch.