Proxy definition and function and how Proxy works in computer network

When someone through their personal computer using a proxy Internet network is trying to surf the internet, the user's computer identity (IP address) will be visible to the website requested.

Sometimes, if you are not careful, this IP address can be misused by others, such as to spread viruses, malware, or even retrieve personal user data such as email passwords, bank passwords, and so on.

To prevent the user's IP address from being clearly visible, we can use a proxy that bridges the personal computer with the Internet network. The following will be explained in more detail regarding proxy definitions, proxy functions, proxy types, and how it works.

Proxy definitions

Simply put, a proxy is a computer server that serves to forward user requests to other servers on the Internet. In the same time, this proxy server is a connection between personal computer and Internet network. Proxy itself has several kinds of usability, among others:

1. To hide the IP address of the client/user's computer, so anyone can surf anonymously without leaving a trace of the IP address on the Web page visited. For example, if a client visits Google through a proxy server, then Google will see that visiting it is a proxy server, not the client, so that Google can also not track the user's client position.
2. Surf faster on the Internet. All requests from client computers will reach the proxy server first. Then the proxy will check if the Web page that the user visited already has caching stored or not. If there is, then the client will get feedback from the data caching, so that the client can surf faster on the Internet.
3. To block an unwanted site. Suppose for the Internet network in offices, so that workers in the Office do not utilize the Internet to play social media and watch, then some sites can be included in the blacklist proxy so that it is not accessible through the office network.

Proxy function