Also it’s not as RAM limited because it uses system memory which can be upgraded.

Any reason you need to encrypt the host OS information? I would assume anything interesting would be in the VM and you could probably have the VM encrypt it’s own storage.

To make sure there is not a misunderstanding, the wattage of a PSU is not how much power it will draw. The wattage is how much is can supply. So if you have a 1000w PSU, but all your components draw 200w of power it will use about 200w of power.

Additionally, if you plan to get a lot of HDDs in the future, do some research on power rails. Some PSUs are designed to only be able to supply a small amount of power to things like HDDs because most people only have 1 or 2.

I have used audiobook shelf to read a couple of PDF files. Seemed to work fine. I mostly use it for audio books.

If you have mechanical HDD you may want to get a foam lined case and anti static bags. That should be the best approach to avoid drive damage.

As for leaving things in the rack, I am concerned that road vibration could walk screws out. That would be bad.

As for food functionality it is very comparable to software remote control of a computer. There are 3 key features that stand out:

• It does not rely on the target machine being booted into the OS. This means you can access it even if it crashes or locks up.
• It can “push” the power button on the machine. This requires an accessory that plugs into the motherboard. So you can force a machine off or cold boot a system.
• You can mount a boot ISO. This is like having a bootable flash drive in the target machine so you can install an OS remotely.

Edit: Because this is essentially full access to the machine as if you where physically at it, it should be considered a security risk. Not saying that you need to be scared of it, but you should be aware of the risk and protect it from unauthorized access.

If the iGPU is getting the job done, I would leave that alone. You could add a GPU and pass it through to a gaming VM. But that is an entirely different project.

Proxmox is basically a VM management software that runs in a Debian install. You may be able to add it to your current install, but I am not certain about that.

First based on everything I have ever heard, don’t host your own email server. If you want to learn it that’s fine, but don’t do it for something you actually rely on. My understanding it’s a constant miserable slog to keep it functioning.

Second for getting started, get a cheap used computer and install Linux on it. Also be prepared to wipe it and install something different. Docker may be a good place to go next. You can find lots of guides online, there are tones of apps setup to run with docker you can test out. You could also explore virtual machines. Both have the advantage of making it easier to experiment with different things.

Let’s say that yes, you pointed them to “networking”. The issue is that they have a specific problem and you are pointing to a topic so broad and deep with no specific direction. But you also say “it’s basic”. Well if it truly is basic and they still don’t get it, this would be a clear indication that they need some level of hand holding. Last if your feeling “that is a lot of work, I don’t want to do that” no problem you don’t have to. But in that that situation I would suggest reviewing before commenting: is it going to get the person closer to a solution? Is encouraging to the person? Am I indicating I also have this problem indicating someone else could step in and help multiple people at once? Is it funny? If it’s no on all those, maybe don’t comment.

I think the important factor is that you have contributed nothing of value to help this person learn. You could have linked to a useful resources, you have suggested Google searches to point in the correct direction. But you basically said “This is easy, RTFM”. Next time at least send them the manual they should read.

https://github.com/containrrr/watchtower

You don’t want hardware raid. Some options you can research:

• Mdadm - Linux software raid
• ZFS - Combo raid and filesystem
• Btrfs - A filesystem that can also do raid things

Some OS options to consider:

• Debian - good if you want to learn to do everything yourself
• Truenas Scale - Comercial NAS OS. I bit of work to get started, but very stable once going.
• Unraid - Enthusiast focused NAS OS. Not as stable as Truenas, but easier to get started and a lot of community support.

There are probably other software/OS’s to consider, but those are the ones I have any experience with. I personally use ZFS on Truenas with a lot of help from this YouTube channel. https://youtube.com/@lawrencesystems?si=O1Z4BuEjogjdsslF

I would stay away from kubernets/k3/k8s. Unless you want to learn it for work purposes, it’s so overkill you can spend a month before you get things running. I know from experience. My current setup gives you options and has been reliable for me.

NAS Box: Truenas Scale - You can have UnRaid fill this role.

Services Hosting: Proxmox - I can spin up any VMs I need and lots of info online to do things like hardware passthrough to VMs.

Containers: Debian VM - Debian makes a great server environment as it’s stable and well supported. I just make this VM a docker swarm host. I managed things with Portainer for a web interface.

I keep data on the NAS and have containers access it over the network. Usually a NFS share.