Understanding Nginx and Cloudflare Tunnel: Securely Expose Services Without Needing Public IPs

Dec 27, 2025 · 5 min read · Introduction For years, exposing a backend service to the internet meant one thing:a public IP + a reverse proxy. That’s where Nginx became the default choice.But today, the internet has changed—zero trust, NAT, CGNAT, dynamic IPs, and security threa...