How can I redirect traffic from Port 80 to Port 443 using UFW?

Question

I use Ubuntu Server 18.04 and wish to forward/redirect traffic from port 80 to port 443 ( https ).

I want to do this as I have SSL on NGINX(port 80) and a Flask app running on Gunicorn on port 443. I can't make NGINX proxy requests as the app isn't in a virtualenv .

I wish to use UFW. How can I do this?

Answer 1

Redirecting http to https traffic is not the purpose of a firewall like ufw .

You should redirect the requests within NGINX as follows:

server {
    listen 80;

    server_name example.org;
    return 301 https://example.org$request_uri;
}

... where 80 is the http port, example.org is your domain, and 301 indicates the browser that the resource is accessible at the other place.