How to install LetsEncrypt SSL on public IP Address?
I have tried it on domains and it is working fine. But can't be able to install it on IP Address.
As of July 1st, Let's Encrypt also issues 60-day IP address certificates.
Domain certificates must be attached to at least a domain name. IP address certificates can be attached directly to the IP address. The first IP certificate was issued on July 1st.
Let's Encrypt policy used to be to not issue SSL certificates for IP addresses, but they ultimately changed their mind.