UPDATED FOR UNRAID 6.4
Here you will find a guide on installing letsencrypt and duckdns docker containers on UnRAID. You will be guided on creating a account with the dynamic dns service known as duckdns aswell as shown how to use letsencrypt and reverse proxy your internal applications such as plex, deluge, sonarr, couchpotato etc. they will even be accesible via HTTPS securely.
This is a companion discussion topic for the original entry at https://cyanlabs.net/tutorials/the-complete-unraid-reverse-proxy-duck-dns-dynamic-dns-and-letsencrypt-guide/