Ubuntu 18.04, no virtual server setup, single website only, following directions from marketplace, closed port 80, but there was no instructions on how to force all web traffic to use https.
Any help would be appreci...
I won't recommend closing port 80 just redirecting all traffic from HTTP to HTTPS.
There are a few ways to do so.
Redirect to https using .htaccess
Redirect to https using a WordPress plugin