I lost a raspberry pi for a couple months. Just couldn’t find the darn thing. It was working fine serving away.

Turns out it was in the basement. I forgot I moved it to be closer to my tilt Hydrometer.

For a while, the windows machine I was using kept randomly becoming unresponsive (both via network, as well as the keyboard+mouse) and I just could not figure out why. Everytime it did, I’d have to force a shutdown by holding the power button until it shutoff, then press it again to start back up. Sometimes this happened while I wasn’t home, so it had to just stay offline until I was.

I got sick of having to do this; so I replaced the power button with a transistor and a RPI. The PI would ping the server every 5min; if it failed to get a response 3 times in a row, it would trigger the transistor for 10sec, release for 3sec, then press and release again; forcing a poweroff then starting the machine again. It’d also write these events to a log file. I think it was around twice a week ish.

Never did figure out what the cause of the lockup was; but it stopped when I replaced windows with Debian.

No mouse problem, but I’ve had to take measures to prevent cat-related downtime. Cats and power-button at the top is not a good combination.

mouse not pictured

Got my hopes up for nothing!

One day, our internet just stopped working entirely. Our ISP was fine, router good, but no outside connection and I couldn’t access local devices. I have two Unraid servers. I took a quick glance at them, they were powered on, all looked ok. I decide to power cycle everything. Still no internet. Then I realize that I can still access Google from my phone when on WiFi… hmm. That would mean… an issue with pi-hole!

I begin to try to diagnose from my phone with a hotspot to my computer. I’m getting warmer but some things just aren’t making sense. I go back and stare at the server running pi-hole. Then it fucking hits me.

I have the pretty odd and totally not ideal home network. I have plans to upgrade everything but currently I have two wifi networks tied to the same WAN. One network is run off of access points so I can get Ethernet to odd areas of the property. The Unraid server hosting pi-hole was connected to an AP and the Ethernet cable I used didn’t have a clip, so it just barely unseated itself from it, breaking the connection. The router+pi-hole config meant also breaking the internet if anything happened to pi-hole or that server. I swapped it for a better cable and it all instantly started working.

Spent that weekend sorting out the network so it doesn’t happen again. It was definitely a head-scratcher.

Then you tell people about it on IRC and become known as “the dead mouse guy”.

But the maximum nickname length on the IRC server is limited, so you settle for “deadmau5” as your nick.

Also mouse not pictures

I was frantically searching for it, then i opended the post to See if the comments found it …

Optical or roller ball?

You don’t need a mouse for a server. Just SSH into it, duh.

Not exactly self-hosting, but I’ve worked at two different academic labs that had unique issues and small budgets.

The first was on top of a mountain at 3km elevation. The low air pressure meant that all hard drives had a lifespan of no more than a year before starting to have issues. This was in the pre-SSD days. The “solution” was to boot from a floppy, never compress data, and have a student return the drives to a low elevation and swap them for the prior ones every six months.

The second was at a place that was using old Datacube MaxVideo hardware that we would never have the budget to replace. It would crash if the room temperature got above about 18C, so we set the thermostat to 15C. Which doesn’t sound too bad until you’ve tried sitting at a desk for 8 hours where everything is 15C and the heat is just slowly leaving your body into the chair, the desk, and the keyboard. And then you walk outside where it is 32C and instantly start sweating because you’re still in several layers and fingerless gloves.

I had a screen get burn in (forgot to turn it off, oops) removed it from the laptop, waited 3 days, put it back in and it was flawless again.

I had a laptop that refused ethernet and would only ever use wifi… When the ethernet was connected. No wifi unless that cord was connected. Confirmed it was, indeed, wifi by using a dummy connector.

Bought a 10tb hdd that refused to read anything at all, opened it for giggles/curiosity and found a piece of scotch tape stuck to one of the disks and one of 4 disks completely shattered. The disk was still factory sealed (by appearance, anyways; they still had the antitamper stickers)

Back in the day of BBS’ my buddy had a wonky modem. If I picked up phone , pursed my lips and did a squeaky sound the modem worked and I could log into BBS.

I got a little fanless atom PC from work that was being tossed because it “didn’t work.” It did work you would just have to apply pressure to it before boot because the CPU must have been coming unsoldered. I just stuck it on the bottom of like 30 pounds of gear and never had a problem.

I’ve got Pfsense installed on a device with 6 RJ45 ports. 0 is wan, 1 is lan0, 2 is lan1, etc up to 4. Why I have multiple lans is somewhat tangential.

One day it rebooted due to a power outage and WAN worked but lan1 and 2 and 3+ were messed up. I’m still not entirely sure what happened, but the second physical Ethernet port was non responsive at boot and Pfsense just assigned the ports as if it never existed. I moved all the cables over one except LAN and it worked just fine. Except that of course in the troubleshooting i had moved all the assignments around and broke it thoroughly, so it took a while.

Not self hosted but at work: after an update to both our firewall cluster nodes they both acted wonky, restarted 5 min after booting, ssh connection wasn’t working half the time, dropped packages… the problem persisted through multiple reboots, support had no idea.

the fix was to pull the plug entirely, wait 10 seconds then power them on again. on both nodes we had this behavior and both worked again after losing power for a few seconds.

seems that even for business appliances “have you tried to turn it off and on again” is a viable solution.