OPNsense

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All discussions about the open source, FreeBSD-based firewall called OPNsense.

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Determine shutdown cause (lemmy.world)

submitted 8 months ago by doctorzeromd@lemmy.world to c/opnsense@lemmy.world

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Hi all, I've got a cheap Celeron box running OPNSense and it's been pretty good so far, but I found twice that the device turned off at some point while I was at work, and I have been unable to figure out what's causing it.

The only change was that I enabled Monit to see if I could figure out what was causing crowdsec to stop sometimes but never ended up configuring anything. I've only been running it for a couple months though, so it's possible that that is not related.

I know that on a Mac (based on freebsd, right?) you can determine whether the shutdown reason was a hard shutdown, regular shutdown, or the power cable being unplugged. Is it possible to do that with OPNSense? I'd like to narrow it down to software or hardware ideally.

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[–] 342345@feddit.de 1 points 8 months ago* (last edited 8 months ago)

The system logs go straight from No IP Change detected to the next boot, so a crash or failure seem likely.

I think so. If it was shut down orderly, there should be log entries for the shutdown.

It's a passively cooled computer, is there any way that I can determine whether a high temp forced the computer down?

Some bios have logging. I remember a Asrock board with bmc which remembered CPU too hot events. It depends on the board, normally I would say: I don't think so.

If it is a hardware issue: boot a Live Linux from an USB-stick. Memtest86, long smart test,fsck, CPU burnin test, a network load test could show failures. But it is just wild guessing at this point from my side. Sorry.

CPU temps in opnsense: system / settings/ misc/ thermal. Not helpful but maybe interesting.