Before work uses nginx, well understood anyway agent, but this has been bothering me forward proxy, today finally see the dark clouds sweep aside the sunny day.
Forward Proxy: Proxy is the client
For example: I can not access the company's intranet, and then use the vpn log on to the stepping stones, and finally a successful visit is to forward proxy.
Reverse Proxy: proxy server is
For example: I have three servers clustered to do with do with nginx reverse proxy, users can only access nginx, nginx automatically go to the back-end server service response.