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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] 1 points 2 months ago

Cloudflare tunnels uses a QUIC connection between the cloudflared on the server and Cloudflare itself, which is encrypted similarly to HTTPS.

Whatever protocol cloudflared uses to talk to your webserver locally is configurable through the Cloudflare access web UI (just change http to https). I've actually got it configured to use unix sockets, which lets me treat it differently in my nginx config.