Written 24 Aug 2026. This is a how-to, not a product card. Buy links are not tagged yet.
Shut down the leftover box without yanking the plug
When you are done for the night, tell the leftover box to finish writing, then power off. Do not yank the cord. Skip this if you only need a reboot after updates.
When you are done for the night, do not yank the power cord. The leftover box is still writing files. Pi-hole and the house share live there. A shutdown is telling the leftover box to finish that writing, then power off. One command. Wait for the lights to go dark.
Skip this if you only need a reboot
If you just ran keep the leftover box updated and the leftover box asked for a reboot, that note already covers sudo reboot. You do not need this shutdown. Come back when you are done for the night.
SSH in, then shut it down
From your normal computer, SSH from the couch. Then run one command.
sudo shutdown -h now
That powers the leftover box off. Wait for the lights to go dark before you unplug. Yanking the cord while it is still writing can leave SSH and Pi-hole dirty when the box comes back.
Reboot instead
If you are moving the box, not done for the week, reboot instead of shutting down.
sudo reboot
Then find the leftover box on the house network and SSH back.
The lid is not a shutdown
Closing a laptop lid is sleep, not shutdown. Sleep is a pause. The machine is still on, but it has stopped doing work. That is don't let the leftover laptop sleep. A leftover desktop can skip the lid talk. Yanking the charger is also not a shutdown. The box may keep running on battery, or it may cut power mid-write.
What next
If it has been a week, keep the leftover box updated. If the leftover is a laptop you leave on, that is don't let the leftover laptop sleep. Do not buy a NAS.
Skip
Skip this note if you only need a reboot after leftover-box-updates. Skip yanking the cord. Skip a UPS, a NAS, and a new switch this pass.
Sources
Debian: shutdown. Ubuntu: shutdown. Official pages only. For the leftover box, see start with what you already have. For the weekly fixes, see keep the leftover box updated. For the login, see SSH from the couch.