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How to remotely reboot a Linux host if SSH fails to connect? (lemmy.nz)
submitted 2 years ago* (last edited 2 years ago) by sylverstream@lemmy.nz to c/selfhosted@lemmy.world
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Edit2: Thanks all for your responses! I have checked the logs, https://lemmy.nz/comment/6192604, and based on that removed tracker-miner-fs as it's a search/index tool which I don't need. No idea why it took over all memory. I'll also get a WiFi Smartplug as a kill switch. Hopefully that solves it. Thanks again heaps!

I've got a HP ProDesk G3 which I'm using as home server, I've installed Ubuntu on it. Earlier this week the services I host on it stopped (Immich & Frigate). I tried to SSH, but it just hung after asking for a password. I could ping it, but it was just unresponsive.

I had to force reboot it manually. This is fine, but I'm not always at home.

The chip has Intel vPro as far as I know, which could be an option, but I have no idea how this works. The documentation on the Intel site seems focused on enterprises. I tried to connect with RealVNC which does not work, so I think I've got to install/configure something on the server first.

I also asked Bing Chat but it came up with non existing packages & commands. Welcome your thoughts!

/edit: I just found this, which seems to be exactly what I need: https://manpages.ubuntu.com/manpages/focal/en/man7/amt-howto.7.html

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[-] Blaster_M@lemmy.world 10 points 2 years ago* (last edited 2 years ago)

A unifi power strip on a unifi network so you can control the power switch, and setting the motherboard to auto turn on after power failure. Though this is the nuclear option for restarting the system. Maybe while you're at it, diagnose why it keeps hanging up on you.

[-] sylverstream@lemmy.nz 3 points 2 years ago

Yeah think I'll get a standalone WiFi smart plug, not connected to my Home Assistant, as a kill switch. But you're right, it's overkill.

I found some weird things in the logs, this goes beyond my knowledge :( See https://lemmy.nz/comment/6192604

[-] JASN_DE@lemmy.world 3 points 2 years ago

But you're right, it's overkill.

I wouldn't say that. Sure, it's not the preferred way of restarting a system, but it is a good backup to have if nothing else works. Remotely messing up the network connections for example.

this post was submitted on 22 Feb 2024
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