What is a Proxy Server? How Do They Work + Security Risks?

Innovations in digital technology have changed how businesses communicate. These ongoing changes have presented both possibilities and challenges. With new innovation comes more risk vulnerability.

Often overlooked, proxy servers are vital tools that can improve security and optimize performance. This is especially great for small to medium-sized businesses that face an increased risk of cybersecurity risks.

Introduction to Proxy Servers

Proxy servers isolate users from the general Internet by acting as virtual gatekeepers. This system acts as an intermediary before sending user queries to the target server. To appear as the source of the request, they conceal the user’s IP address and camouflage their identity. These affordable solutions enable businesses to efficiently monitor and reduce the dangers connected to their online operations.

They are essential tools for cybersecurity initiatives. They can be used for anything from data filtering and protection to control. To maintain security and privacy, these mediators help with controlling internet traffic and enhance performance.

What is the Purpose of Proxy Servers?

1. Enhancing Privacy and Anonymity

One of the main responsibilities of a proxy server is to hide the user’s IP address and location to protect the user’s identity and sensitive data. This means the destination server doesn’t know who made the original request, making it difficult for cyber attackers to infiltrate your computer or network.

2. Content Filtering and Control

Proxy servers offer businesses the ability to efficiently control and monitor internet activity. They serve as a barrier to intercept and filter incoming traffic.

3. Network Performance

Proxy servers improve network performance by frequently caching content, load balancing, and reducing bandwidth usage.

4. Strengthening Cybersecurity

By blocking malicious websites and illegal access attempts, proxy servers protect users and systems from a number of online risks.

How Do Proxy Servers Work?

Proxy servers give a layer of control, security, and anonymity to requests.

Traffic is intercepted, assessed, and then sent to the customer as part of the operation. They improve user privacy, provide users control over network traffic, and guarantee that data travels safely.

The proxy server first receives a request for data from the client’s device, which it then compares against predetermined criteria. After approval, the proxy conceals the user’s actual IP address and sends it to the destination server.

After processing this request, the destination server relays the response to the proxy server so that the user can access it.

Types of Proxy Servers

1) Forward Proxies:

Forward proxies, used to get data to groups of users within an internal network, place themselves between the client and the internet. It is best suited for internal networks with a single point of entry.

2) Reverse Proxies:

Reverse proxies sit between the internet and a web server. They protect the server by hiding its identity and filtering incoming traffic.

3) Transparent Proxies:

The purpose of transparent proxies is to capture and reroute traffic without changing it. They provide a seamless user experience but can be more susceptible to certain cyber security threats.

4) Anonymous Proxies:

Anonymous proxies, made to hide the identity of the client, make internet activity untraceable.

5) High Anonymity Proxies:

It takes anonymity a step further by erasing your information before the proxy attempts to connect to the target site. It conceals the user’s IP address and the knowledge that a proxy is being used. High anonymity proxies are perfect for jobs handling sensitive that demand high confidentiality.

What is the Difference Between a Proxy Server and a VPN

A VPN is similar to a proxy server. They make internet traffic appear to be coming from a remote IP address.

VPNs operate at the system level, routing all internet traffic through their encrypted network by default. While many VPN services offer the option to exclude specific applications from this process, the standard configuration ensures that all device traffic is protected.

Proxy servers, on the other hand, are configured on an individual basis. Every browser or application that a user wants to route through a proxy must have its proxy connection set up. Any existing proxy connections on the same device do not affect the traffic of an application unless specifically enabled.

Security Risks of Proxy Servers

Vulnerabilities associated with certain proxies, incorrect setups, and a lack of encryption can expose individuals and organizations to a variety of possible risks.

Proxy servers usually hide the users’ IP addresses to improve online privacy, however, this does not extend beyond web requests.

Furthermore, not all proxies are configured with encryption and tend to operate on an unsecured connection. This can expose user data to attackers that can easily intercept communications.

Incorrectly set up proxy servers can slow down network performance and expose an organization’s network to cyber attacks, making it harder for users to access the internet. It is also susceptible to data interception because of this.

Most proxies run on open ports that can be exploited through cyber vulnerabilities. This can increase an organization’s total number of attack vectors.

At CyberShield CSC, we’re committed to helping small and  medium-sized businesses overcome these cybersecurity challenges. Contact us today to learn more about our tailored cybersecurity solutions.