Apparently, I just needed to wait. :-) I happened to be looking at something else today and found this project https://github.com/Notifiarr/dockwatch

If you look at one of the panels, it shows ports being used!!

I need it when I add new containers. I need to know what ports are not in use.

Just sent you a DM

I have run far more on far less. I’m actually running 72 containers on an older Dell mini and the only thing that causes it to be slow is the writing to the external USB drive. You would be surprised at how efficient containers are

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I actually just got the same or similar device. My plan right now, since it has 2 NICs is to install proxmox as my hypervisor, then install Opnsense for a firewall, then either Debian or Ubuntu server to run my docker stacks with all storage going to my Synology NAS. Also, as for VPN containers, I typically use the QbitVPN container so it is self contained to the container itself. Basically I only need VPN for torrents since Usenet already goes over https. I then create a wireguard container to VPN into for access from outside my house.

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