Explained: STUN Protocol

You're on a video call. The connection is direct — low latency, no relay, no server in the middle eating your bandwidth. Yet both you and the person you're talking to are behind routers, on private networks, with addresses the internet has never heard of. How did your browser find the other person? The answer, almost certainly, involved STUN . It ran silently in the background before the call even connected, took a fraction of a second,… Read More