The Cilium L2 Announcements feature provides an active-passive failover IP for external IPs and LoadBalancer IPs. Although the official documentation mentions the term load balancing, it also makes clear that there is currently no traffic load balancing between nodes. If multiple service endpoints exist within the …

If you still have some old hardware you want to recycle, you might run into issues since Proxmox mainly assumes that your system can handle GPT partitions. This tutorial will guide you through installing Proxmox with MBR. I wrote it because I am currently using an old laptop that still has enough power for some VMs but …

I read many times that using Proxmox with WiFi does not work well, and indeed there are some challenges compared to a wired connection. The setup I describe here will work for regular home environments. Using Proxmox with WiFi is most definitely not recommended for production use cases. In most cases using a Ethernet …

Don’t do it – unless you are brave or really require it Vagrant with WSL is a constant mix of Linux and Windows. I personally think, there are very good reasons to use Vagrant with WSL, which is why I still do it, but not all features work and especially not out of the box Setup Please also check the official Vagrant …

Imagine you're working from home, as everyone does in your company. You're contacting a colleague who is supposed to be tasked with a new project. Me Good morning Carl, how is life? Could you please create a new app to generate a CV? Let me send you the specifications... Carl Awesome, yeah, I’m fine, hope you’re doing …

Dear readers, I made it! During Cyber Week, I decided to become a Golden Kubestronaut, and finally I made it! It's a proud feeling to achieve something that only a bit more than 300 people have achieved before. Exam overview Code Name Type Passing score ICA Istio Certified Associate Performance-based 68 LFCS Linux …

Already at the end of October, I decided to take the CKA exam to underline my Kubernetes knowledge. When I started preparing for it, I received a phone call telling me that a potential customer might be interested in Azure skills. Because of this, I postponed my CKA plans and decided to take the Azure exams first, …

To be honest, I didn’t have a website in November 2025, but since I am mainly speaking about my experiences in November, I changed the date. This also gives me the chance to provide a bit more detail on things I learned later on. At the beginning of November, I decided to pursue some Azure certifications. Initially, I …