$ sudo apt-get update
$ sudo apt-get install unzip wget
$ wget https://bin.equinox.io/c/4VmDzA7iaHb/ngrok-stable-linux-amd64.zip
$ unzip ngrok-stable-linux-amd64.zip
$ sudo mv ./ngrok /usr/bin/ngrok
$ ngrok
Connect Account
ngrok authtoken <your_auth_token>
Fire It Up
$ ngrok help
$ ngrok http 8080
For ngrok v3
Connect Account