Reverse proxy to get ip address (how reverse proxy is configured)

Reverse proxy, not just a router

Many people think that the reverse proxy is just a very simple router, but its real role is much more important than we usually think. Especially in today's environment where information security is a growing concern, the role of the reverse proxy is even more important.

Reverse proxy to get ip address, how to configure reverse proxy?

For an ordinary user, he may think that by checking the IP address of the website he visits, he will be able to know the user's IP address, but in fact this is not the case. This is because many websites hide their real IP addresses through reverse proxies, which protects their privacy and security, and also prevents them from being attacked by hackers.

So how do you configure a reverse proxy? First of all, you need to understand the basic principles of reverse proxy, its core role is to forward the request from the external network to the internal network. We can realize the reverse proxy through some open source software, such as Nginx, Apache, HAProxy and so on. These software are very powerful, can be very good to meet our needs.

For example, suppose we need to access an internal web server from an external network. First we need to install Nginx on the reverse proxy server and then configure some parameters as shown below:

“`

http {

server {

listen 80.

server_name example.com.

location / {

proxy_pass http://internal-web-server.

proxy_set_header Host $host.

proxy_set_header X-Real-IP $remote_addr.

proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;

}

}

}

upstream internal-web-server {

server 192.168.1.100:8080.

}

“`

In this code, we specify the listening port of the reverse proxy server via the listen parameter and then the domain name we want to access via the server_name parameter. Next, in the location parameter, we forward the request to the internal web server and set some HTTP headers such as X-Real-IP, X-Forwarded-For, etc. Finally, we specify the IP address and port number of the internal web server with the upstream parameter.

With the above configuration, we can realize the reverse proxy to get the IP address. When a user accesses a web server through a reverse proxy, Nginx will automatically append the user's real IP address to the HTTP headers and then forward the request to the internal web server. This way we can easily get the user's IP address.

concluding remarks

A reverse proxy is much more than a simple router, it is much more important than we usually think. With a reverse proxy, we can protect our privacy and security from hackers. At the same time, it has become incredibly easy to get an IP address through a reverse proxy. I hope this article can help you.