August 28, 2026 DevOps & Administration Installing an Old Dell B1165nfw Printer Driver on Ubuntu 26.04 After moving my workstation to Ubuntu 26.04, I ran into a small problem with my old Dell B1165nfw Mono MFP. Ubuntu automatically discovered the network printer without any issue. | more
August 24, 2026 DevOps & Administration Using VS Code and Git CLI with Forgejo on Ubuntu After moving more of my daily work to an Ubuntu workstation, one of the smaller questions was "how do I want to manage my Git repositories" On Windows I used GitHub Desktop quite often. | more
August 13, 2026 DevOps & Administration, Proxmox Automating Bare-Metal Proxmox Installation with PXE and iPXE When building my three-node Proxmox cluster based on HP EliteDesk mini PCs, I wanted more than just an automated installation process. One of my main goals was to get hands-on experience with PXE booting and understand how bare-metal provisioning works in practice. | more
June 17, 2026 DevOps & Administration, Proxmox Building a GitOps-Style Kubernetes Homelab on Proxmox For my new Role as DevOps Engineer, i was spending hours on video training ( Udemy, LinkedIn, YT .. ) . Even thought there is good material out there - and i want to explicit name Nana's Tech World - it is sometime cumbersome, slow paced, not on the spot. | more
June 12, 2026 DevOps & Administration vi settings for YAML files When editing YAML files for Kubernetes, Ansible, Docker Compose or CI/CD workflows, indentation mistakes are one of the easiest ways to break a configuration. | more
June 5, 2026 DevOps & Administration, Proxmox The Proxmox Update Checklist I Use in My Homelab I like Proxmox because it is reliably straightforward in the best possible way. It runs my VMs, LXCs, and test environments without making itself the center of attention. | more
May 5, 2026 DevOps & Administration, TrueNas CopyFail CVE-2026-31431 and the TrueNAS Workaround CopyFail has been all over the Linux security news lately, and for good reason. The vulnerability is tracked as CVE-2026-31431 and properly described in this blog post -> Copy Fail — CVE-2026-31431 And this one is not the usual “technically serious, but probably not relevant for my homelab” kind of bug. | more
May 5, 2026 DevOps & Administration, TrueNas Self-Hosted Forgejo Runner for Git and CI/CD Forgejo is a community fork of Gitea, created as a more independent home for self-hosted Git. A key reason to choose it over Gitea is its stronger community governance and focus on open development. | more
March 11, 2026 DevOps & Administration The Windows utilman.exe Login Bypass Explained: How It Works and Why It’s Dangerous I ran into this Windows topic while looking at account recovery and man .. was i happy! when i figured how simple this is but then i realize what it actually means for security. | more
March 3, 2026 DevOps & Administration Using Markdown on GitHub – A Practical Guide Markdown is a lightweight markup language that is widely used on GitHub. It is commonly used for README files, documentation, issues, pull requests, and wikis. | more