Note: I am just beginning to learn the ins & outs of LXC containers.

So far, LXC containers are just like regular Linux (for the most part...) & the same procedures apply when building.

Building a Container

Templates

LXC Containers start with a template.

For our example here, we're going to start with a basic Debian 11 template.

This means we need to ensure we have the template on the PVE host.

Sign into the PVE UI & select your Local datastore
Select the CT Templates storage
Click the Templates button
Select a template package (we're going with debian-11-standard) then hit the Download button

Now that you have a template to start from, you can hit the Create CT button.

For now, we'll create a very basic container.

1st screen: choose an ID# and a hostname for the container. Then enter the password for root on this container (twice...). Then hit Next
2nd screen: select the template we downloaded above. Then hit Next
3rd screen: choose a storage location & boot disk size. Then hit Next
4th screen: how many CPU cores you want available to the container. Then hit Next
5th screen: how much memory you want available to the container. Then hit Next
6th screen: set up networking (you'll note it defaults to static addressing... silly...) Then hit Next
7th screen: set up DNS (Why in heck this isn't considered part of networking...) Then hit Next
8th (final) screen: Look things over to make sure they're the way you want them. Possibly check the Start after created box. Then hit Finish

ping: socket: Operation not permitted

Discussion & a solution

Solution #3 seems most appropriate...