Quiz

1. Could you go through how proxies work again?

   Sure. Setting up a proxy is just a relay:

   1. Apache (or Nginx or others) receives the request from the browser
   2. The proxy decides where to send the request
   3. sends a new request to internal server (e.g. http://localhost:3000/)
   4. The app generates a response
   5. sends the response to the Proxy (simple HTTP)
   6. Proxy encrypts the response (for HTTPS)
   7. Proxy sends the response to the browser

   This has several advantages:

   • Hides our server from the outside
   • Handles HTTPS for us
   • Possibly cache or compress responses
   • Does logging, other stuff