What does nginx reverse proxy mean?

Nginx (engine x) is a high-performance HTTP and reverse proxy server. Nginx is a lightweight web server/reverse proxy server and email proxy server.

It is characterized by occupying less memory and strong concurrency capabilities. In fact, nginx’s concurrency capabilities do perform better among web servers of the same type. Users of websites in mainland China use nginx There are: Baidu, JD.com, Sina, NetEase, Tencent, Taobao, etc.

So what is a reverse proxy?

The Reverse Proxy method refers to using a proxy server to accept connection requests on the Internet, then forwarding the requests to the server on the internal network, and returning the results obtained from the server. To a client requesting a connection on the Internet, the proxy server appears as a reverse proxy server to the outside world.

Let’s understand it another way, that is, when the external network cannot directly access the internal network server, it must be accessed through a proxy server, and the external network only sees the proxy server, and feedback is also returned by the proxy server. , the external network is invisible to the proxy server and the internal network is directly connected to the specific situation.

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