I'd like to update this post incase it helps anyone else: Requirement: I have a free ddns.net (NOIP) hostname and I wanted to enable remote connection to Emby via HTTPS using the xxxx.ddns.net hostname. This requires certificate to be used in Emby configuration. Step 1: Opened up port 80/443 on my Synology NAS (firewall and router with port forwarding) Step2: Used Control Panel in Synology to create a certificate using LetsEncrypt method. Step3: Closed port 80/443 Step4: