this post was submitted on 09 Aug 2023
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Privacy
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VPNS with port forwarding matter if you want to stay anonymous while using P2P services.
@Helldiver_M @Dubious_Fart @leraje actually the port forwarding thing is about accepting inbound connections. Without port forwarding, NAT routers (including VPNs) randomly allocate ports for outbound connections but still won't accept inbound connections on those same ports.
There's a trick where you discover the randomly allocated port numbers and then both connect to each other at the same time so both routers think it's outbound. It works unreliably and BitTorrent doesn't use it.