Hi! I have a main domain, let’s call it example.com on one server, then I have admin.example.com on a different server and dev.example.com on another server.
What is the best way to generate SSL certificates only for each subdomain, leaving the main domain unmodified.
My domain is: example.dom
My web server is : Nginx
The operating system my web server runs on is : Ubuntu 18.04
My hosting provider, if applicable, is: AWS
I can login to a root shell on my machine: yes