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Is connection from home server to cloudflare HTTPS or HTTP when using cloudflare tunnel? (programming.dev)

submitted 2 months ago by [email protected] to c/[email protected]

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I had self-hosted services on a Raspberry Pi using Docker in my college room. Since I couldn't set up port forwarding, I couldn't enable HTTPS for them. I know that I can still have https without port forwarding but it is not straightforward and difficult for me. And, I used cloudflare tunnel to access them from outside my college network. When I access them using cloudflare tunnel, it uses HTTPS. However, I found conflicting information online about the connection between the server and cloudflare, with some sources saying it's HTTP and others saying it's HTTPS. What's true?

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[–] [email protected] 4 points 2 months ago* (last edited 2 months ago)

You should be able to set it up, which seems to be the crux of your question.

The reason for the conflict is likely that the traffic is encrypted through the tunnel, but cloudflare holds the certificates needed to verify the identity of your site and can see all the traffic.

But tunnels are done by having your server initiate the connection with cloudflare, so it behaves like a client in terms of networking, and it should work in most cases.

(Worth noting that video was against their policies for using at least the free tunnels last I was aware, so if that's part of your use case you might not be able to use it.)