https://clefsoft.co.uk/tags/home-lab/Recent content in Home-Lab on Paul Clephan | Intune, ConfigMgr, SCCM & Windows Management BlogHugoen-gbSun, 02 Aug 2026 00:00:00 +0000https://clefsoft.co.uk/posts/defender-for-endpoint-ubuntu-2604/Sun, 02 Aug 2026 00:00:00 +0000https://clefsoft.co.uk/posts/defender-for-endpoint-ubuntu-2604/MDE’s deployment tool installs fine on Ubuntu 26.04 — right up until a removed apt-key, a repo it clobbers itself, and a phantom ‘apt is busy’ send you round in circles. Here’s the actual sequence, with the errors.https://clefsoft.co.uk/posts/cert-manager-dns01-not-propagated/Sun, 02 Aug 2026 00:00:00 +0000https://clefsoft.co.uk/posts/cert-manager-dns01-not-propagated/cert-manager sat on ’not yet propagated’ while the TXT record was demonstrably live. The catch: it checks propagation through the cluster’s own resolver — and on a split-horizon LAN, that resolver can’t see what Let’s Encrypt can.