Cloudflare Tunnel Zero Trust (cloudflared) for Self‑Hosted Apps + Free HTTPS

Table of Contents – Cloudflare Tunnel Zero Trust

Overview

Expose self-hosted apps safely without opening inbound ports. Cloudflare Tunnel creates an outbound-only connection from your host to Cloudflare Edge, gives you free HTTPS, and lets you gate access with Zero Trust (SSO/MFA).

External reference:
Cloudflare Tunnel Docs

Prerequisites

  • A domain on Cloudflare (free plan works).
  • One Linux host that runs the origin app (e.g., localhost:8080).
  • sudo access and a browser for initial login.

Placeholders: app.example.com, my-tunnel, <TUNNEL-UUID>.

Quick Architecture

Cloudflare Tunnel Zero Trust

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