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Do you have an overview anywhere of the protocol you're using to encapsulate TCP in HTTP? Why did you go with HTTP instead of WebSockets? Does Narrowlink support UDP?

Sorry for so many questions

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Narrowlink uses the HTTP/S (WebSocket) protocol as transport; it encapsulates and decapsulates TCP and UDP connections on top of it. This means both UDP/TCP tunneling methods are available out of the box. For example, the following screenshot shows a UDP tunnel for DNS purposes and its encapsulated traffic as TLS (HTTPS+WebSocket=WSS). https://i.ibb.co/wcHB8g2/udp.png

I also invite you to continue the discussion on the github https://github.com/narrowlink/narrowlink/discussions

You are most welcome

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