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Another option is subpaths: xyz.ddns.net/portainer

While you can do that, you should be aware of the security implications (every application can see and modify every other application’s cookies). If at all possible, I would try to avoid this setup.

Oh, I didn’t want to suggest that there is no value in using a reverse-proxy, there certainly is. Just don’t expect it to do anything for you in terms of application security. The application behind it is just as exposed as it would be without a proxy. So if there was a security flaw in that application, the reverse-proxy does not help at all.

I am not sure where this idea comes from, but putting a service behind a reverse-proxy does not increase its security in any way, unless you’d do authentication right at the reverse-proxy.

No, even the earliest Ryzens support ECC reporting just fine, given the motherboard used supports it, which many boards do. Only the non-Pro APUs do not support ECC.

Matrix also does have a pretty big problem with meta data. By default it stores a ton of meta data (at least the reference server implementation does) and I am not sure if this is even a solvable problem without redesigning the protocol. When opting for an alternative to Signal, XMPP is probably the better choice.

You were talking about adversaries discovering the backdoor. That’s something entirely different from compromised keys. So your sacrasm is quite misplaced here.

In order to successfully implement a backdoor, you need to ensure that you are more clever than your adversaries, because those same backdoors can be used against you.

In this instance, that’s not the case. Only those in possession of the right key can use the backdoor. Also, discovering infected systems from the outside, appears to be impossible - the backdoor simply does not do anything to reveal itself if you don’t have the key.

Sure, cloud services can get quite expensive and I agree that using used hardware for self-hosting - if it is at least somewhat modern - is a viable option.

I just wanted to make sure, the actual cost is understood. I find it rather helpful to calculate this for my systems in use. Sometimes it can actually make sense to replace some old hardware with newer stuff, simply because of the electricity cost savings of using newer hardware.

Well, what they are stating is obviously wrong then. No need to use some website for that anyway, since it is so easy to calculate yourself.

Before anyone loses their minds, imagine you get the i3-8300T model that will peak at 25W, that’s about 0.375$ a month to run the thing assuming a constant 100% load that you’ll never have.

Not sure how you came to that conclusion, but even in places with very cheap electricity, it does not even come close to your claimed $0.375 per month. At 25 W you would obviously consume about 18 kWh per month. Assuming $0.10/kWh you’d pay $1.80/month. In Europe you can easily pay $0.30/kWh, so you would already pay more than $5 per month or $60 per year.

I’d choose LUKS over Veracrypt for simplicity. If the drive is solely for backup, depending on the backup tool you use, you might not even need encryption on the file system level. Several backup solutions support data encryption.