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What is a Proxy Server?


Staying safe on the internet has always been a crucial part of its safe use. However, just as the internet has evolved, so have cyber threats. Solutions like proxy servers or VPNs are used predominantly by organizations or tech-savvy individuals. A somewhat alarming number of people use computers that are almost completely unprotected against cyber threats. Perhaps the greatest reason stopping more widespread usage is simply a lack of understanding of how these solutions function. Even with modern-day cyber securities vendors like Sangfor offering them as services, the behind-the-scenes workings can be somewhat mystifying. This article aims to break down the complexities of proxy servers. We will discuss everything from the proxy server definition (including the meaning of different proxy types), what they can do, how they work, and much more.To get more news about proxy web, you can visit pyproxy.com official website.
What is a proxy server?
A proxy server by definition is an intermediary between your computer and the internet. Every computer has an IP address connected to it, which acts much like a regular home address. Without it, your computer would not be able to receive data from other sources, and it would not be able to send verifiable and trustworthy data outwards. The problem with this system is that if your IP address falls into the wrong hands, you may be at risk of spoofing attacks, DDoS attacks, getting hacked, and much more. Proxy servers are designed to prevent situations like this.

How do proxy servers work?
Proxy servers add an extra layer of defense between you and the internet by being a middleman, or gateway between your computer and a website. Data requests and receipts are facilitated through the proxy server, meaning your computer’s IP address is not revealed.

To better explain, let's imagine two individuals browsing the same website - one with a proxy server set up, and one without. The user without a proxy server will issue a request directly to the website, revealing his computer’s IP address. Contrastingly, the user with a proxy server sends this request not to the website, but to the proxy server itself. From here, the proxy server would forward it to the website, and facilitate the returned data to the user. This way, the user’s IP address is not shared, using instead the IP address of the proxy server.
What are the different types of proxy servers?
While all proxy servers have the same overall purpose, specific characteristics and the way they function can vary. The following is a breakdown and definition of the most common proxy servers:

Forward proxy
A forward proxy is the most common type of proxy server. They are typically set up within organizations or other internal, secluded networks. All the computers within this network send their requests through the forward proxy, which can then reject or allow them to pass through a firewall. Forward proxy servers provide a level of administrative control, as certain websites can be blocked, while also providing a basic level of protection for the IP addresses of internal computers.

Transparent proxy
Transparent proxies are mainly used for monitoring and the surveillance of employees. They are well suited for this as they provide no obvious indicators to the user that they exist - hence the name “transparent”. These proxy servers do not change or modify requests in any way. Rather, they filter requests so that employees can monitor or restrict internet usage.

Anonymous proxy
An anonymous proxy is designed to keep the user’s personal information secret. They will not provide websites with personal information such as your IP address and therefore location. Because of this, targeted information such as some advertising or suggested posts based on locality cannot be done. To some, this is seen as a benefit, and staying anonymous online remains a priority to ensure their safety.