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Often said that there are two proxy, network proxy (Proxy) and design patterns in the proxy (proxy mode), here to talk about the network of agents: Forward Proxy and Reverse Proxy
How to understand Forward Proxy and Reverse Proxy
Acting Deputy, not all proxy server proxy client to server requests it, regardless of VPN or Nginx is this routine, VPN server proxy client initiated the request, Nigix proxy server is the client initiated the request, but where's the positive, reverse is said?
But there is a reasonable, blindly blame others blind "coinage" is not enough, after in-depth study, found that can be understood forward proxy and reverse proxy.
Forward proxy, the proxy is the direction of the agent, the agent's purpose is to enhance or protect the delegator, then forward proxy, whether the direction of the agent enhanced object the same?
Enhanced forward proxy is a client, such as VPN, so that clients can access a number of restricted service.
Acting direction it? Reverse proxy is, in turn, enhance the service side, such as load balancing, proxy server proxy server to provide services.
Therefore, forward proxy, the proxy agent object orientation is different, though Nigix proxy server is also a client sends a request, but his aim is to enhance the service side, forward proxy agent (enhancement) of the client, reverse proxy agent (enhanced) is a server-side, just reversed direction over, so called forward proxy, reverse proxy.
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1. Why is called reverse proxy reverse proxy?