Shulou(Shulou.com)06/03 Report--

The following is to explain to you how Nginx reverse proxy achieves load balancing. I hope it can bring some help to you in practical application. Load balancing involves more things, there are not many theories, and there are many books on the Internet. Today, we will use the accumulated experience in the industry to do an answer.

1. Explain what is Nginx reverse proxy and how to achieve load balancing?

A:

The client uses the Nginx proxy cloud server to send the request to the internal web server, which is used to improve the access speed of static web pages. That is to say, add a reverse proxy server [Nginx] between the client request and the web server, why go through the reverse proxy server? It is because the reverse proxy server can evenly forward the request to multiple internal web servers, thus achieving the purpose of load balancing.

In other words, if there is no reverse proxy, the request will not be so uniform, there may be a lot of requests on a server, but some servers do not receive requests.

2. If there is a reverse agent, there must be a forward agent, right?

A: the forward proxy server is also located between the client and the server to obtain server data. The client sends a request to the forward proxy server, pointing to the target server. The proxy server transfers the data returned by the target server to the client.

3. What is the difference between forward proxy and reverse proxy?

Answer: forward proxy client, reverse proxy server.

4. What is the use of reverse proxy?

Answer: ① proxy web server receives client request

② is set outside the firewall as a stand-in for the content server, and the client securely connects to the proxy server, which plays a role of security protection.

③ caches static content. When the content changes, the reverse proxy server is notified through the internal mechanism that the cache is invalid and reloaded.

④ implements load balancing.

Read the above to explain how the Nginx reverse proxy achieves load balancing. If there is anything else you need to know, you can find out what you are interested in in the industry information or find our professional and technical engineers for answers. Technical engineers have more than ten years of experience in the industry.

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