by Maciek Grischke | Jul 19, 2026 | Tutorials
Two file servers replicate a shared folder with DFS Replication. Everything was in sync except a handful of very large PST files, which existed on one server and not the other. No errors in the DFSR event log, no backlog, nothing in the health report. They were simply...
by Maciek Grischke | Jul 16, 2026 | Tutorials
I was asked to explain, in plain terms, what happens to a deleted email in Microsoft 365 and how long it can still be found. The question came up because of a subject access request, and the honest answer turned out to be “forever”, which was not what...
by Maciek Grischke | Jul 13, 2026 | Tutorials
My home lab had grown to the point where five or six things needed the same wildcard certificate: the virtualisation host’s web UI, Plex, a torrent client, two Pi-hole instances and an SMTP proxy. Each had its own half-remembered renewal hack. I consolidated all...
by Maciek Grischke | Jun 30, 2026 | Tutorials
Back in 2024 I wrote about getting a Let’s Encrypt certificate onto a Synology NAS. That method needs ports 80 and 443 open to the NAS. This year I replaced it on three NAS boxes, two Synology and one QNAP, with a wildcard certificate issued through Cloudflare...
by Maciek Grischke | Jun 14, 2026 | Tutorials
A backup product’s “boot from backup” feature stopped working on one of my Hyper-V hosts. It restores a disk image, attaches it to a temporary VM and boots it, and the attach step failed every time with an unhelpful error. The vendor’s first...
