This is a (pretty detailed) how-to on building a simple ACME client from scratch, able to issue real certificates fromLet's Encrypt. I've skipped things like error handling, object orientedness, tests - but not much tweaking would be needed for the client to be production-ready. The code...
Now that all the ground work is done, let us begin creating LetsEncrypt SSL certificates for Proxmox. We need to createTWO accountsfor LetsEncrypt: Staging and Production. Staging allows you to test before getting the real certificate. Staging is important because, if there are too many attempt...