I really don't understand the "Custom server access URLs" option!

Hi there,

I have my own domain, let's call it mydomain.com which is pointing to my home dynamic IP address (the router takes care of updating the domain with the correct IP) and I've also opened port 32400 on my router for the machine where Plex Media Server (PMS) is running.

Outside of my local network, I can simply access http://www.mydomain.com:32400/web and open my PMS page. This works (and https also works, albeit the certificate is not valid).

So, what exactly is the point of the Custom server access URLs option?

I don't really understand it...