Hey /r/nginx,

I'm fairly new to nginx. But recently I've started playing around with nginx's reverse proxy capabilities. In my home lab, I set up an nginx proxy. And i'm able to resolve proxy.lab.local:"port #" to a few servers.

Now I have 2 free-tier amazon EC2 instance running plex (because why not) and nginx proxy. However instead of typing in 1.2.3.4:32400/web/html for my plex server. i'd like my reverse proxy to push plex to 5.6.7.8.

How exactly would I accomplish this? I have a default template that I'm working with:

 server {
   #If I'm understanding this correctly, my AWS Nginx server.
   listen 80;
   server_name foxplex.com:32400/web/html;
   rewrite ^ https://$host$request_uri? permanent;
 }

 server {
    #My AWS Plex Server.
    listen 80 32400;
    server_name foxplex.com;

    location / {
       proxy_pass              http://5.6.7.8:32400;
    }
 }