What is a Cloudflare Tunnel private key and why is it important?

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Grade: Education Subject: Support
What is a Cloudflare Tunnel private key and why is it important?
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A Cloudflare Tunnel private key is a cryptographic key used to authenticate your origin server to the Cloudflare network when using Cloudflare Tunnels. It's crucial because it establishes a secure, encrypted connection between your server and Cloudflare, preventing unauthorized access and ensuring only Cloudflare can connect to your origin.