This is more for information than a bug report.

I have a dedicated server set up on a DIY 2nd PC, been running a server for years, Recently I changed my ISP and obtained a static IP address. only my server stopped showing in the browser list, I figured this was a port forwarding issue and googled the required ports only to find several different versions, obviously I don't want to open ports that are not required but I also need to open all the required ports.

Could you therefore give me a definitive list of all required ports (Also listening ports for server browsers like DZSA Launcher}. Also is there a site that I can go to to get the latest reliable/safe information for current ports required for future reference?