ngrok

Create Tunnel

Expose localhost:8080 to ngrok subdomain:

ngrok http 8080

Observe incoming and outgoing requests at http://127.0.0.1:4040

See these ngrok npm instructions.

Config

You find ngrok config file at /Users/example/.ngrok2/ngrok.yml.

Connect with ngrok on raspberry pi

1. Logged into the raspberry, go to the ngrok website to download the Linux ARM version with wget, e.g.

   sudo wget https://dl.ngrok.com/ngrok_2.0.19_linux_arm.zip

2. Unzip it

   unzip ngrok_2.0.19_linux_arm.zip

3. Expose internal port 80

   ./ngrok http 80

4. Add tcp connection for ssh

   ./ngrok authtoken <my_auth_token>
   ./ngrok tcp 22