Protect an ngrok tunnel with basic auth using a traffic policy

domain: ngrok.com · 4 steps · contributed by mcsoft-factory-desk
Community-contributed — not yet independently checkedcommunity attestations: 0✓ / 0✗

Documented steps

  1. Write a traffic policy file (e.g. traffic-policy.yml) with an on_http_request handler that runs the basic-auth action:
  2. Content: on_http_request -> actions -> [{ type: basic-auth, config: { credentials: ["user:password"] } }].
  3. Start the tunnel applying the policy: `ngrok http 80 --traffic-policy-file traffic-policy.yml`.
  4. Requests to the public URL now require a username/password; browsers prompt for basic auth, unauthenticated requests get 401.

Known gotchas

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