What Is a Proxy Server? Everything You Need to Know

In Vietnam, searches for proxies have risen sharply as more people need to switch proxies to reach foreign websites. So what is a proxy server?? Let's Mona Media Read on for the details about proxy servers.

What is a proxy server?

A proxy sits between the user and the internet. It is a computer system that separates the connection between sender and receiver. A Proxy Server is an Internet server that forwards information and controls connections to keep customers safe when they access the Internet through it.

If you use a Proxy Server, your Internet traffic passes through it and then goes to the address you requested. The response comes back to the proxy server, which forwards the data from the website to you. A good Proxy Server protects the internal network and shields users from unwanted things on the internet while keeping their privacy.

Newer Proxy Servers do more than forward web requests, for example improving network performance and securing data. Proxy machines provide a shared network connection and cached data that speeds up common requests.

What does a Proxy Server do?

Depending on what users need, proxy servers provide different functions. Specifically:

Filtering and firewalls

A proxy server filters applications more independently than ordinary firewalls. If you install and configure it properly, security and network performance improve noticeably. With the help of a server gateway, the proxy server and firewalls can also work together.

Beyond filtering network addresses, antivirus systems (firewalls) and filtering can also filter based on web content. This lets you control access and block users from certain websites.

Connection sharing

In medium and large networks, every client inside the network can connect to the outside through one or more proxy servers. This avoids the limit of one direct Internet connection per client.

Caching and proxy servers

Web page caching combined with a proxy server can improve a network's quality of service by:

• Improving scalability and saving network bandwidth.
• Speeding up responses to clients.
• Improving availability.

How a Proxy Server works

Every server that operates on the internet needs an IP address, and so does a Proxy Server. An IP address is like your home address. A courier needs to know where you live to deliver goods and mail, and the Internet likewise needs the IP address of your computer to send data to the right machine.

When you send a web request from your computer, it goes to the proxy server first. There the data is processed and your request is carried out. The proxy also collects the responses from the web server and returns the website data so you can see the page in your browser.

A Proxy Server can also encrypt data so no one can read it in transit, and it can block access to specific websites based on IP address.

What are the benefits of using a proxy server?

Saves bandwidth and improves speed

This is the most important benefit of a proxy server. With a proxy server, organizations get better performance and can cache frequently visited web pages.

When you request a page, the proxy server checks whether it already has the latest copy and, if so, sends you the most recently saved one. This saves a business as much bandwidth as possible and improves network performance.

Privacy protection

Individuals and organizations also use proxy servers to browse the Internet more privately. Some proxy servers change your identifying information and IP address. As a result, no one can tell which machine sent the original request, which keeps your personal information and browsing habits private.

Control over Internet use

To deny access to a specific website, an administrator can adjust the proxy configuration, redirect you with a notice, or tell you not to view these sites on the company network. They can also log all web requests, so even if they do not block a site they still know which sites you asked to visit.

Access to blocked resources

A proxy server lets network users get around content restrictions set by a company or organization. To reach a blocked website, you log in to a proxy server elsewhere and view the site from there.

Security level

By changing the proxy server configuration, you can encrypt web requests so no one can read your transactions. Companies and organizations can connect their proxy server to a virtual private network so remote users can reach the Internet through the company proxy.

The company can easily control and verify users, who can then access resources and use a secure connection that fully protects company data.

What are the risks of using a Proxy Server?

Some risks of using a Proxy Server to be aware of:

Free proxy servers can be risky

If you use a free Proxy Server you can face many risks, even with services whose revenue model is based on advertising.

A free service usually does not invest much in hardware or backend encryption. You may run into data security problems as well as hidden performance problems.

So be careful with a completely free server. Some of them may only be trying to steal your credit card number.

Browsing history

A proxy server has your original web request and your IP address, so make sure you check the Proxy Server logs and how that data is stored.

No encryption

If you use a Proxy Server without encryption, your requests go out as plain text. Anyone can see your account details, passwords and usernames. Make sure the Proxy Server you use supports encryption.

Types of Proxy Server

Transparent Proxy

A Transparent Proxy tells websites that it is a proxy server, while still passing along your IP address and identifying your web requests.

Public libraries, businesses and schools often use a Transparent Proxy to filter content, because it is easy to set up by server and client name.

Antonymity Proxy Proxy

An Anonymity Proxy does not pass your IP address to the website. This improves security and helps prevent identity theft, and it can also stop websites from serving marketing content targeted to your location.

Distorting Proxy

In contrast to an anonymous proxy, a Distorting Proxy sends a false IP address to the web server, posing as another proxy, to protect the user's IP. To reach blocked content, you can appear to be in a different location.

High Anonymity proxy

A High Anonymity proxy, also called an anonymous server, periodically changes the IP address it shows to the web server, which makes it very hard to tell whose traffic it is. This is considered the safest way to browse.

Proxy Server is a familiar concept to network administrators, but ordinary network users can also understand its concepts and features. We hope this has helped you understand Proxy Serverbetter, so you can use it as effectively as possible.

See more:

• What is a Web Server? Common types of Web Server
• What is Cloud Hosting? Benefits of a cloud server