Serviio

Secure (or at least more secure) access to Serviio web server running by default on port 23423?

I do not want that anybody from the local network can access it. Setting up a firewall is not a good enough option, since 1) I want it access from dynamic IPs and 2) some IPs I want to use for access are shared.

I am looking for solutions for both, Linux (Raspbian) and Windows 10.

Thanks for ideas / solutions (the better option)!

You can access MediaBrowser using HTTPS using port 23523. Of course, even without HTTPS users can't actually access MediaBrowser without knowing your login name and password. That is assuming you're using Serviio version 2.x, which introduced user logins.