https://blog.johlem.net Notes on detection engineering, offensive security, and compliance — from Luxembourg's financial sector. en https://blog.johlem.net/posts/proxmox-air-gapped-lab.html https://blog.johlem.net/posts/proxmox-air-gapped-lab.html Thu, 14 May 2026 00:00:00 +0000 infrastructure proxmox oscp detection-engineering A 10-VLAN Proxmox lab on a MINISFORUM MS-A2, purpose-built for running offensive techniques against a full blue-team stack — without a single packet touching the real internet. https://blog.johlem.net/posts/hello-world.html https://blog.johlem.net/posts/hello-world.html Wed, 22 Apr 2026 00:00:00 +0000 meta detection-engineering compliance A first post laying out what this blog covers — detection engineering, offensive tradecraft, and European compliance — and why it exists as plain HTML with nothing underneath it.