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

Congratulations!

You have an LXC container.

At this point,, for all intents and purposes, it works just like a normal Linux VM.

There will be minor oddities, but basically, it's a lightweight VM.

ping: socket: Operation not permitted

Discussion & a solution

Solution #3 seems most appropriate...