Requirements:
- config needs SSL certificates provided by Let's Encrypt
- created DH-parameter
How to
Creating a DH-parameter
If you don't want to use the DH paramter provided by Let's Encrypt, you can create your own.
$ cd /path/to/CertificateLocation
$ openssl dhparam -out dhparam.pem 2048
Adapt config
Replce sub.domain.tld by your own domain you want to use at any place in configuration. Mentioned locations have been higlighted by # replace sub.domain.tld by your own.