this post was submitted on 29 Aug 2023
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I'd be interested to know what programs actually use port forwarding. I'm guessing quite a lot but you never know which need it until they don't work.
Specifically, it's any peer-to-peer (P2P) connections that utilize a port that's not open by default on your router. P2P connections that need forwarding are used in services like PC gaming (usually in older titles or some indie games), VoIP, torrenting, etc.