Random things I found out
 

Installing Let’s Encrypt SSL certificates on Ubuntu, things to know

Preparing your server for SSL If you are installing SSL and Let’s Encrypt on Ubuntu for the first time, you should first enable SSL on your apache install. If you don’t you will get this error message: SSLCertificateFile: file ‘/etc/apache2/insert_cert_file_path’ does not exist or is empty First enable SSL: sudo …