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Choose Your Path

Pick the path that matches your experience. Each path gives you a minimal set of steps to get your site reachable.

Beginner: get a site online fast​

  1. Start a simple server locally (pick one):
    • Static files: python -m http.server 8080
    • React/Vite dev server: npm create vite@latest && npm install && npm run dev -- --host --port 3000
  2. Run the tunnel (anonymous mode, no signup):
    • Static/Express/Flask on 8080: 
      cruma-tunnel-ui http --target 127.0.0.1:8080
    • React/Vite on 3000: 
      cruma-tunnel-ui http --target 127.0.0.1:3000
  3. Copy the public URL printed by the CLI and open it in your browser.

If it doesn’t load, check: is your local server running? Is your firewall blocking the port? Try curl http://127.0.0.1:8080 (or :3000) locally first.

Intermediate: custom domains and multiple services​

  • Use a config file to run multiple targets from one agent (see Configuration).
  • Add a CNAME to use your own domain and list that hostname on your target (see Custom Domains).
  • Review Security & TLS to decide on pinning/CAA for custom domains.

Advanced: isolation, regions, and hardening​

  • Run multiple agents on the same tunnel ID for regional load spreading (see Multiple Targets and Tunnels).
  • Use separate tunnels for isolation between teams/apps.
  • Enforce issuance and trust: set CAA on your domain, pin your agent’s cert (or use mTLS) for custom hostnames (see Security & TLS).