I use the ELK stack (Elasticsearch, Kibana, Beats)

$10/m for 1 provider and 1 indexer?

If you hunt around this black friday you should be able to get a better deal than that. For reference I have 1 unlimited provider (newshosting) for about $30/yr and 2 indexers each around $15/yr

I transfer files to the pi via owncloud, it is incredibly slow on my pi 3b

Just guessing, are you using ethernet and does the Pi 3b have drives plugged in to USB?

A big issue with the Pi 3b is that the ethernet and USB share a single channel, so if you're writing to a USB drive then you're bottlenecking your ethernet and vice versa.

You could try using wifi instead of ethernet. I've squeezed out some extra performance in the past doing so.

To answer your question though, the Pi 4 does remove this limitation so you should see much higher throughput than the 3b

Unfortunately, not any more, sorry!

That was a while ago and we recently finished developing a replacement in-house so the OSTicket server is no more

I will say though that the Admin/Client panels are all powerful but quite unintuitive and not pretty. Think of old software from 90's / early 2000's that could do everything you wanted but you needed the manual most of the time.

In the Zero Trust dashboard you can choose exactly which ports are exposed by the tunnel

Can't say I looked too much in to alternatives, but I got my workplace set up with self-hosted OSTicket. Worked perfectly for what we needed

Because it would make it easy to run both Truenas Scale and Kali, rather than trying to make Kali run under Truenas

I just check the proxmox dashboard every now and then. Honestly if everything is working I'm not too worried about exact ram levels at any given moment

Install Proxmox on the host, then Kali and Truenas as VM's under it. Tailscale or Zerotier to create a vpn to access it securely remotely.

Proxmox 100%. Absolute perfect environment for playing around with jellyfin and whatever other software you want to check out. Just make a container, install whatever you want in it, then either leave it or delete it when you're done. Makes life so simple

Same situation here but my users are all just friends and family so what I did was whitelist access from my own country and blacklist everything else. Not bulletproof of course but it did cut down on unintended traffic by nearly 100%

Cloudfare offers an authentication service like that already. Really easy to set up in front of a tunnel