What is an Nginx Cloudflare Tunnel and why is it used?

An Nginx Cloudflare Tunnel, often referred to as Cloudflare Tunnel (formerly Argo Tunnel), is a service that securely connects your origin servers, like those running Nginx, to Cloudflare's global network. It eliminates the need to expose your origin server directly to the public internet by creating an outbound-only connection from your server to Cloudflare's edge. This enhances security by hiding your origin IP address, bypassing firewall complexities, and enabling features like Zero Trust access.