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Development Tools

Posted by Hugo Amorim
Hugo Amorim
Courses Plus Student 23,205 Points

ngrok port issue - how do you change port ?

Is any one familiar with ngrok?

I'm trying to set it up, but I keep getting a port issues.

ngrok ; exit; Error: Specify a local port to tunnel to, or an ngrok command.

Example: To expose port 80, run 'ngrok 80' logout

[Process completed]

It doesn't let me change the config. Any ideas? I'd like to set it to 8080.

2 Answers

Geoff Parsons
Geoff Parsons
11,679 Points
Geoff Parsons
Geoff Parsons
11,679 Points

Not familiar with the tool myself but looking at the help output it gives the following examples:

Examples:
    ngrok 80
    ngrok -subdomain=example 8080
    ngrok -proto=tcp 22
    ngrok -hostname="example.com" -httpauth="user:password" 10.0.0.1

So it looks like maybe you could use -proto=tcp 8080 to achieve what you're looking for?

Hugo Amorim
PLUS
Hugo Amorim
Courses Plus Student 23,205 Points
Hugo Amorim
Hugo Amorim
Courses Plus Student 23,205 Points

So ngrok give a public url to test your page through PageSpeed Insights.

It doesn't seem to work?

these were the instructions:

Part 1: Optimize PageSpeed Insights score for index.html

Some useful tips to help you get started:

Check out the repository To inspect the site on your phone, you can run a local server

$> cd /path/to/your-project-folder $> python -m SimpleHTTPServer 8080 Open a browser and visit localhost:8080

Download and install ngrok to make your local server accessible remotely.

$> cd /path/to/your-project-folder $> ngrok 8080 Copy the public URL ngrok gives you and try running it through PageSpeed Insights! Optional: More on integrating ngrok, Grunt and PageSpeed.