I’ve looked that up before. I think you have to hold Alt while grabbing the edge of the selection.

What do you mean by expensive? It’s free open source software no?

I’m pretty sure he means 12$/year. 6$ per month is pretty expensive for a domain.

A diagram of the relevant Hypervisor/VMs/containers + Network information would be helpful.

From where and how are you testing DNS? Did you use dig and specified the nameserver directly?