Yes that one but then again you re right. The 443 for omv is the internal one as you mentioned. TechnoDad configuration isnt working for me. Even though I have portforwarde portsfor years in different apps and using single port and range port but ALWAYS the external and internal port was the same number or ranger of numbers meaning 443->443, 400-440->400-440. First time I tried the external to be different than internal and none of the ports seems opened with any program I am testing. i f I change the 443->450 in 443->443 or 450->450 alone it will work. I think what TechnoDad did is a combination of forwarding and routing afterwards? See here
The above forwarding doesnt work (and its not win firewall, comodo firewall fault). As already mentioned if I change the number to both tabs WAN and LAN to be the same is working
Sorry this exeeds my knowledge. Cant tell you why the port redirection does not work. You could change the ports in which the OMV Gui is mapped, but I dont know if this would result in other problems.
Soin duckdns site set up: ieronymous.duckdns.org for example
in duckdns container as SUBDOMAINS enter what? ieronymous only or the whole url link (ieronymous probably) ans for TOKEN copy pase from duckdns site its obvious
in lets encrypt for CONTAINERS enter the names of apps to use for example libresonic,airsonic......(is that case sensitive. Does for instance libresonic has to be as in Appdata directory, or as I typed it inside the libresonic container in order to work? Because there is going to be an entry also to edit in the conf files inside the letsencrypt directory.All the above naming has to be the same????)
in duckdns container you would set SUBDOMAINS to ieronymous.
in letsencrypt URL to ieronymous.duckdns.org, SUBDOMAINS for example to libresonic,emby,nextcloud. Those dont have to be case sensitive. The adjustments will be made in the *.conf - files of nginx in the letsencrypt container. ONLY_SUBDOMAINS to false.