Ngrok

Ngrok allows us to expose our device port to world with NAT or firewall tunnel.

It helps us share a website running on local machine with the world, or creating a temporary backend to test app from internet , many more.

Ngrok provides a free plan with 40 connects/minute and 1 online ngrok process, for more details visit here

Download & Installation

Download Ngrok from official Download page here

Make sure to create account / signup with Ngrok and copy authtoken value

Installation Commands

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unzip /path/to/ngrok.zip	# Unzip Downloaded File
./ngrok authtoken <your_auth_token>	# Add Authentication token to use ngrok service
./ngrok help	# Getting Help
./ngrok http 80	# Exposing port 80

Tutorial

Official Docs here & for official Tutorial check here

for tutorial creating a python file server with http.server and exposing it with ngrok

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mkdir test	# Creating Demo folder
cd test
echo "<h1>Hello world</h1>" > index.html	# Creating demo file

# Starting python server
python -m http.server	

now you can check http://localhost:8000 returning Hello world

now we can expose to world with ngrok

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ngrok http 8000	# Staring ngrok on running port 8000

Now congratulation you have created your own webserver exposed to world.