What is reverse proxy and how it works | Reverse proxy | Forward proxy

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In this video, you can learn what is reverse proxy and how it works.

First, let me explain what is forward proxy. In the forward proxy, the request is sent from the client, and then the request takes over the proxy server, which communicates with the servers to get the data and send them back.

There are a few reasons why the forward proxy can be used.

First of all, it’s used to avoid browsing restrictions, for example, companies sometimes limit access to the internet, and the proxy can be used to overcome it.

The second idea is why the forward proxy may be used to stay anonymous on the internet because when we send the request through the proxy, the only visible IP is the one form the proxy server.

Now it's time to find out what is reverse proxy and how it works. In the reverse proxy, server is between the network and the application origin server with data. When the client does a request, it’s sent to the network, and then it’s grabbed by the reverse proxy server, then the request sent to the origin server, and the response is returned. The main advantages of using the reverse proxy server are:

- preventing the attacks like DDoS, because the attackers won’t be able to hit the origin servers of the application, just the proxy server;
- helps in caching content;
- provides the SSL encryption;
- can help to distribute the requests to multiple origin servers;
- can add basic HTTP access authentication to a web server that doesn’t have one.
There exist the third-party reverse proxy servers like Cloudflare.

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