Written 26 Aug 2026. This is a how-to, not a product card. Buy links are not tagged yet.

After a reboot, check the leftover box still does its jobs

The leftover box came back up. Confirm SSH, house ad block, and the file share still work before you buy anything.

A reboot is a clean restart. The leftover box stops, then comes back. The three house jobs are couch login (SSH), house ad block (Pi-hole), and the shared folder (Samba). This note is the look after it is up. You are not buying anything.

Skip until the leftover box answers

If ping fails and SSH hangs, start with is the leftover box still on? This note assumes the leftover box is awake again.

Why a reboot happened

After keep the leftover box updated, a kernel line can ask for a reboot. A kernel line is a core-of-the-OS fix. A power blink is a reboot. Shut down the leftover box without yanking the plug then power on is a restart too. You are not buying a monitoring box for one clean restart.

SSH from the couch

Same habit as SSH from the couch. If the password or key fails after the reboot, do not buy a new box. Check the name: give the leftover box a name that sticks. Check the address: keep the leftover box on the same number.

House ad block

Browse a site that used to show ads, or open the Pi-hole admin. If ads are back, that is when ads come back, check the leftover-box ad block. If the router forgot the leftover box after a blink, set it again: point the house at the leftover-box ad block.

House share

Open the folder from a laptop or a phone. If it vanished, that is when the house share disappeared, check the leftover box.

Optional: ask the leftover box

If you already SSH'd in, you can ask systemd, the leftover box's job list:

systemctl is-active pihole-FTL

systemctl is-active smbd

You want active on both. If Pi-hole is not active, when ads come back, check the leftover-box ad block. If Samba is not active, when the house share disappeared, check the leftover box.

What next

Leave it. Skip a UPS for a single clean reboot: you do not need a UPS yet. Skip a NAS. Skip a mesh kit. Weekly updates stay keep the leftover box updated. Unattended stays let the leftover box apply weekly fixes without you.

Skip

Skip if the leftover box is still off. That is is the leftover box still on?
Skip a monitoring appliance.
Skip a UPS this pass. That is you do not need a UPS yet.
Skip opening SSH to the internet.
Skip buying a second leftover box because one reboot scared you.

Sources

Debian: systemctl. Ubuntu: systemctl. Official pages only. For the awake check, see is the leftover box still on?. For the weekly habit, see keep the leftover box updated. For ads, see when ads come back, check the leftover-box ad block. For the share, see when the house share disappeared, check the leftover box. For the login, see SSH from the couch.

Also on this topic

Is the leftover box still on?You left the leftover box on. This morning ads are back, or SSH hangs. Check if it is awake before you buy anything. Keep the leftover box updatedOnce a week, give the leftover box its fixes so SSH and Pi-hole are not sitting on last year's bugs. Skip this until next week if you just finished first weekend. When ads come back, check the leftover-box ad blockThe leftover box is awake, but banners are back. Check that Pi-hole is still answering before you buy a mesh kit or blame the router. When the house share disappeared, check the leftover boxThe leftover box is awake, but Finder or File Explorer cannot see the folder. Check that Samba is still running before you buy a NAS.