Splitting a 30-seat office into three VLANs without a downtime window
Staff, guests and the machines nobody wants to touch. Moving one department per evening, with the old flat network kept alive as a fallback until Friday.
A backup routine that survives a stolen laptop
Append-only repository keys, a NAS copy, an off-site copy, and the checklist we follow during the twice-yearly restore drill.
Monitoring when nobody is on call
Four checks per site instead of forty. Why we deleted most of our dashboards and kept the ones somebody actually opens.
Choosing a router you can still patch in five years
What we look at before buying: firmware history, replaceable storage, a serial console, and whether the vendor publishes an end-of-support date at all.
Moving a 900 GB shared drive off a desktop under someone's desk
It had been running for six years on a consumer disk with no SMART monitoring. The migration took one weekend; writing the documentation took longer.
Older notes (№ 001–036) are being re-checked before they go back online. If you were looking for a specific one, write to us and we will send the text.