I agree that the gatekeeping isn’t a good thing, but you should learn at least the basics of the CLI. It will give you a better understanding of what’s going on behind your GUI and makes troubleshooting and fixing problems a lot easier.

Definitely not required but it is absolutely a skill worth having.

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Apple will randomize your MAC when connecting to networks to maintain privacy. It’s a per-network setting that can be toggled off for your own private network if you want to.

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Why is port 22 open? Is this on your router as well or just the server?

This is SSH, which you should pretty much never have open (to the internet! Local is fine) MC is by default 25565. You will have every bot on the internet probing that port.

You’re saying that data centers are replacing batteries constantly…just imagine the labor costs on that (and the down time), not even considering the material cost.

I’m the tech doing the battery replacements. The big boy UPSes are typically a 3-5 year replacement cycle. Something like this:

(I just picked the last one on my phone so not a great picture, they’re about the size of a small refrigerator)

On rack mount and desktop style UPSes 18-36 months isn’t unreasonable. Some of the smaller UPSes, like APC 750s, go through batteries even faster. My personal theory is that they just get and stay too hot.

There is typically zero downtime while servicing any of them, every critical system has redundant power supply and battery replacements usually don’t interrupt power output anyway. It would take multiple failures to cause any sort of significant downtime, and if it would, we just do them during scheduled downtime.

Now get the hell off my lawn LAN.

Another library in the area has ethernet ports but they are just decoys (dead ports). I asked the librarian what the problem is, why they are disabled, and whether we can turn them on.

They’re not decoys, they’re just not patched. Because we don’t generally patch anything that’s not going to be in use. Also because some rando will probably attempt to plug their nasty ass laptop into it, which is also why we block port intrusions.

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