title: How can I redirect traffic from Port 80 to Port 443 using UFW?
body: <p>I use Ubuntu Server 18.04 and wish to forward/redirect traffic from port 80 to port 443 (<code>https</code>).</p>
  <p>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 <code>virtualenv</code>.</p>
  <p>I wish to use UFW. How can I do this?</p>