Acting interaction occurs at the client and on the server side.
Forward Proxy:
client request server, proxy client requests sent to the server.
Reverse Proxy:
server response in response to the client, the proxy server and sent to the client.
Transparent proxy:
When the client requests the server, proxy client requests sent to the server.
When the server responds to the client, the proxy server's response, sent to the client.
Anonymous Proxy:
encryption transparent proxy.
Forward proxy role:
(1) access to the inaccessible server.
(2) speed up access to the server.
(3) the server request data cache.
(4) the client requests authorization.
(5) to hide the client.
Reverse proxy role:
(1) to protect and hide the server.
(2) Load balancing: a request with a server, a response from the reverse proxy server node in the cluster.
Transparent proxy role:
behavior (1) management of requests and responses.
Recommended Reference: https://blog.51cto.com/z00w00/1031287