How do I get a valid certificate for a box that is behind a firewall and does not have a DNS entry?
I was looking at letsencrypt.org but currently it looks like a valid DNS entry is needed, of which I don't have.
There is nothing special about my setup, its just a box that is not directly on the internet, no DNS entry but I need HTTPS to run correctly.
How do I generate a trusted certificate base on IP or something?
How can I do that? Thanks,