I come from VyOS and really liked it, but still prefer opnsense for the GUI, constant updates and plugins. VyOS started losing appeal once they opted for subscription stable iso access (even if they did give me a free subscription for some comment contribution in their repo). Also, I have to admit, that VyOS needs a fraction of the resources needed by opnsense.
I tried virtualizing Windows on proxmox and it went smooth
Here it is the comment I was looking for. Another fellow three body problem reader, I suppose.
I would try this route first.
Here is my logic: it’s the effort to find what you are looking for in a bunch of files and I don’t know how many lines of source code versus the effort to search for some packets (which you should listen for anyway in the final solution) sent from a specific IP address over a relatively small amount of time.
I am not saying your server is not secure, but just fencing off IMAP from the web is not enough to limit spammers from relaying mail through your server. They usually exploit a misconfigured SMTP server, which does run on port 25 (plain or start TLS mode)
You can also evaluate to buy something like this for 3.5 or 2.5inch disks.
Your point still stands, but the Great Wall visibilty is overrated. Source: https://www.scientificamerican.com/article/is-chinas-great-wall-visible-from-space/
I was about to comment, that here in Italy, many fines have a price if you pay in few days and give up your right to fight back, and another price if you pay before the fine is due and keep your right to seek help from a judge.
Anyway, nobody told you, that if you want to see a judge that was at least 40$ ten years ago. Just to see him once, no warranty given. And even if you can get your fine cancelled, that 40$ were gone. So at the end you pay and also pay soon so to pay less. I also hate it.