• June 17, 2022

What Is The Purpose Of A Proxy Server_

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What is a Proxy Server? How It Works & How to Use It | Fortinet

What is a Proxy Server? How It Works & How to Use It | Fortinet

What Is a Proxy Server?
A proxy server provides a gateway between users and the internet. It is a server, referred to as an “intermediary” because it goes between end-users and the web pages they visit online.
When a computer connects to the internet, it uses an IP address. This is similar to your home’s street address, telling incoming data where to go and marking outgoing data with a return address for other devices to authenticate. A proxy server is essentially a computer on the internet that has an IP address of its own.
Proxy Servers and Network Security
Proxies provide a valuable layer of security for your computer. They can be set up as web filters or firewalls, protecting your computer from internet threats like malware.
This extra security is also valuable when coupled with a secure web gateway or other email security products. This way, you can filter traffic according to its level of safety or how much traffic your network—or individual computers—can handle.
How to use a proxy? Some people use proxies for personal purposes, such as hiding their location while watching movies online, for example. For a company, however, they can be used to accomplish several key tasks such as:
Improve security
Secure employees’ internet activity from people trying to snoop on them
Balance internet traffic to prevent crashes
Control the websites employees and staff access in the office
Save bandwidth by caching files or compressing incoming traffic
How a Proxy Works
Because a proxy server has its own IP address, it acts as a go-between for a computer and the internet. Your computer knows this address, and when you send a request on the internet, it is routed to the proxy, which then gets the response from the web server and forwards the data from the page to your computer’s browser, like Chrome, Safari, Firefox, or Microsoft Edge
How to Get a Proxy
There are hardware and software versions. Hardware connections sit between your network and the internet, where they get, send, and forward data from the web. Software proxies are typically hosted by a provider or reside in the cloud. You download and install an application on your computer that facilitates interaction with the proxy.
Often, a software proxy can be obtained for a monthly fee. Sometimes, they are free. The free versions tend to offer users fewer addresses and may only cover a few devices, while the paid proxies can meet the demands of a business with many devices.
How Is the Server Set Up?
To get started with a proxy server, you have to configure it in your computer, device, or network. Each operating system has its own setup procedures, so check the steps required for your computer or network.
In most cases, however, setup means using an automatic configuration script. If you want to do it manually, there will be options to enter the IP address and the appropriate port.
How Does the Proxy Protect Computer Privacy and Data?
A proxy server performs the function of a firewall and filter. The end-user or a network administrator can choose a proxy designed to protect data and privacy. This examines the data going in and out of your computer or network. It then applies rules to prevent you from having to expose your digital address to the world. Only the proxy’s IP address is seen by hackers or other bad actors. Without your personal IP address, people on the internet do not have direct access to your personal data, schedules, apps, or files.
With it in place, web requests go to the proxy, which then reaches out and gets what you want from the internet. If the server has encryption capabilities, passwords and other personal data get an extra tier of protection.
Benefits of a Proxy Server
Proxies come with several benefits that can give your business an advantage:
Enhanced security: Can act like a firewall between your systems and the internet. Without them, hackers have easy access to your IP address, which they can use to infiltrate your computer or network.
Private browsing, watching, listening, and shopping: Use different proxies to help you avoid getting inundated with unwanted ads or the collection of IP-specific data.
Access to location-specific content: You can designate a proxy server with an address associated with another country. You can, in effect, make it look like you are in that country and gain full access to all the content computers in that country are allowed to interact with.
Prevent employees from browsing inappropriate or distracting sites: You can use it to block access to websites that run contrary to your organization’s principles. Also, you can block sites that typically end up distracting employees from important tasks. Some organizations block social media sites like Facebook and others to remove time-wasting temptations.
Types of Proxy Servers
While all proxy servers give users an alternate address with which to use the internet, there are several different kinds—each with its own features.
Forward Proxy
A forward proxy sits in front of clients and is used to get data to groups of users within an internal network. When a request is sent, the proxy server examines it to decide whether it should proceed with making a connection.
A forward proxy is best suited for internal networks that need a single point of entry. It provides IP address security for those in the network and allows for straightforward administrative control. However, a forward proxy may limit an organization’s ability to cater to the needs of individual end-users.
Transparent Proxy
A transparent proxy can give users an experience identical to what they would have if they were using their home computer. In that way, it is “transparent. ” They can also be “forced” on users, meaning they are connected without knowing it.
Transparent proxies are well-suited for companies that want to make use of a proxy without making employees aware they are using one. It carries the advantage of providing a seamless user experience. On the other hand, transparent proxies are more susceptible to certain security threats, such as SYN-flood denial-of-service attacks.
Anonymous Proxy
An anonymous proxy focuses on making internet activity untraceable. It works by accessing the internet on behalf of the user while hiding their identity and computer information.
A transparent proxy is best suited for users who want to have full anonymity while accessing the internet. While transparent proxies provide some of the best identity protection possible, they are not without drawbacks. Many view the use of transparent proxies as underhanded, and users sometimes face pushback or discrimination as a result.
High Anonymity Proxy
A high anonymity proxy is an anonymous proxy that takes anonymity one step further. It works by erasing your information before the proxy attempts to connect to the target site.
The server is best suited for users for whom anonymity is an absolute necessity, such as employees who do not want their activity traced back to the organization. On the downside, some of them, particularly the free ones, are decoys set up to trap users in order to access their personal information or data.
Distorting Proxy
A distorting proxy identifies itself as a proxy to a website but hides its own identity. It does this by changing its IP address to an incorrect one.
Distorting proxies are a good choice for people who want to hide their location while accessing the internet. This type of proxy can make it look like you are browsing from a specific country and give you the advantage of hiding not just your identity but that of the proxy, too. This means even if you are associated with the proxy, your identity is still secure. However, some websites automatically block distorting proxies, which could keep an end-user from accessing sites they need.
Data Center Proxy
Data center proxies are not affiliated with an internet service provider (ISP) but are provided by another corporation through a data center. The proxy server exists in a physical data center, and the user’s requests are routed through that server.
Data center proxies are a good choice for people who need quick response times and an inexpensive solution. They are therefore a good choice for people who need to gather intelligence on a person or organization very quickly. They carry the benefit of giving users the power to swiftly and inexpensively harvest data. On the other hand, they do not offer the highest level of anonymity, which may put users’ information or identity at risk.
Residential Proxy
A residential proxy gives you an IP address that belongs to a specific, physical device. All requests are then channeled through that device.
Residential proxies are well-suited for users who need to verify the ads that go on their website, so you can block cookies, suspicious or unwanted ads from competitors or bad actors. Residential proxies are more trustworthy than other proxy options. However, they often cost more money to use, so users should carefully analyze whether the benefits are worth the extra investment.
Public Proxy
A public proxy is accessible by anyone free of charge. It works by giving users access to its IP address, hiding their identity as they visit sites.
Public proxies are best suited for users for whom cost is a major concern and security and speed are not. Although they are free and easily accessible, they are often slow because they get bogged down with free users. When you use a public proxy, you also run an increased risk of having your information accessed by others on the internet.
Shared Proxy
Shared proxies are used by more than one user at once. They give you access to an IP address that may be shared by other people, and then you can surf the internet while appearing to browse from a location of your choice.
Shared proxies are a solid option for people who do not have a lot of money to spend and do not necessarily need a fast connection. The main advantage of a shared proxy is its low cost. Because they are shared by others, you may get blamed for someone else’s bad decisions, which could get you banned from a site.
SSL Proxy
A secure sockets layer (SSL) proxy provides decryption between the client and the server. As the data is encrypted in both directions, the proxy hides its existence from both the client and the server.
These proxies are best suited for organizations that need enhanced protection against threats that the SSL protocol reveals and stops. Because Google prefers servers that use SSL, an SSL proxy, when used in connection with a website, may help its search engine ranking. On the downside, content encrypted on an SSL proxy cannot be cached, so when visiting websites multiple times, you may experience slower performance than you would otherwise.
Rotating Proxy
A rotating proxy assigns a different IP address to each user that connects to it. As users connect, they are given an address that is unique from the device that connected before it.
Rotating proxies are ideal for users who need to do a lot of high-volume, continuous web scraping. They allow you to return to the same website again and again anonymously. However, you have to be careful when choosing rotating proxy services. Some of them contain public or shared proxies that could expose your data.
Reverse Proxy
Unlike a forward proxy, which sits in front of clients, a reverse proxy is positioned in front of web servers and forwards requests from a browser to the web servers. It works by intercepting requests from the user at the network edge of the web server. It then sends the requests to and receives replies from the origin server.
Reverse proxies are a strong option for popular websites that need to balance the load of many incoming requests. They can help an organization reduce bandwidth load because they act like another web server managing incoming requests. The downside is reverse proxies can potentially expose the HTTP server architecture if an attacker is able to penetrate it. This means network administrators may have to beef up or reposition their firewall if they are using a reverse proxy.
Proxy Server vs. VPN
On the surface, proxy servers and virtual private networks (VPNs) may seem interchangeable because they both route requests and responses through an external server. Both also allow you to access websites that would otherwise block the country you’re physically located in. However, VPNs provide better protection against hackers because they encrypt all traffic.
Choosing VPN or Proxy
If you need to constantly access the internet to send and receive data that should be encrypted or if your company has to reveal data you must hide from hackers and corporate spies, a VPN would be a better choice.
If an organization merely needs to allow its users to browse the internet anonymously, a proxy server may do the trick. This is the better solution if you simply want to know which websites team members are using or you want to make sure they have access to sites that block users from your country.
A VPN is better suited for business use because users usually need secure data transmission in both directions. Company information and personnel data can be very valuable in the wrong hands, and a VPN provides the encryption you need to keep it protected. For personal use where a breach would only affect you, a single user, a proxy server may be an adequate choice. You can also use both technologies simultaneously, particularly if you want to limit the websites that users within your network visit while also encrypting their communications.
How Fortinet Can Help
FortiGate has the capability of both proxies and VPNs. It shields users from data breaches that often happen with high-speed traffic and uses IPsec and SSL to enhance security. FortiGate also harnesses the power of the FortiASIC hardware accelerator to enhance performance without compromising privacy. Secure your network with FortiGate VPN and proxy capabilities. Contact us to learn more.
5 Reasons Your Company Should Use Proxy Servers - CMSWire

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5 Reasons Your Company Should Use Proxy Servers – CMSWire

The average person probably has only a vague understanding of the purpose of a proxy server.
If you’re like most people, you probably associate proxy servers with unblocking Netflix content from other countries or staying a bit more secure on an open WiFi network. The reality, however, is that proxy servers do much more — and are especially vital for businesses.
Proxy servers are a fairly simple intermediary mechanism between a computer with a private IP address and another server on the internet.
A proxy server has its own IP address, which is made public instead. While a rather seemingly insignificant change, the proxy IP address can be used for a number of vital business functions related to everything from security to customer experience.
There are five vital corporate reasons to use proxies that every business leader needs to know about, even if you aren’t involved in the tech side of things.
1. Improve Corporate and Institutional Security
Every company today is worried about hackers. A data breach is costly, both in terms of monetary loss and public image.
A proxy server reduces the chance of a breach. Proxy servers add an additional layer of security between your servers and outside traffic. Because proxy servers can face the internet and relay requests from computers outside the network, they act as a buffer.
While hackers may have access to your proxy, they’ll have trouble reaching the server actually running the web software where your data is stored. You may not be able to fully keep top hackers out with just a proxy IP alone, but you’ll be much less vulnerable.
2. Carry Out Sensitive Tasks Anonymously
Proxies are probably best known for their ability to anonymize web traffic. Unfortunately, many people fail to realize just how important this function is for businesses.
Reporters, whistleblowers and security officers count on the added identity protection offered by proxy servers to protect themselves, sources, their companies, clients and partners.
You can also better protect any current research and development and other company activities.
Any potential spy trying to track web traffic to figure out what your business is developing won’t be able to track your employees as easily if your company always uses a proxy. Any sensitive tasks completed over the internet are more secure when first anonymized through a proxy.
3. Balance Traffic So Your Server Doesn’t Crash
Nothing annoys a customer faster than a company’s website going down when they need it. Proxy servers, cloud data storage and peering improve customer experience by ensuring this doesn’t happen.
Essentially, your website’s data and content is stored across many servers around the world in the cloud, and peering helps your network handle greater traffic. Of course, you can’t ask a customer to try a bunch of ISPs to reach that content.
A proxy server instead is used to create a single web address to serve as the access point. The proxy will also balance the requests to each server so none overloads. All of this works in the background to ensure a seamless customer experience on your website.
4. Control Employee Internet Usage
No company wants employees accessing unsecure or inappropriate websites on company networks. That’s why many internal networks are run on a proxy server.
When the network is accessed through a proxy, network administrators control which devices have access to the network and which sites those devices can visit. You can block undesirable content, as well as any sites you don’t want employees using on company time.
Network administrators can even record what content is being accessed and when for internal purposes. Many security officers use this to monitor for potential illegal activity or security breaches.
5. Faster Speeds and Bandwidth Savings
Due to all the extra work accomplished in the background by proxy servers, most people assume they slow down internet speeds. This isn’t always true.
Proxy servers can easily be used to increase speeds and save bandwidth on a network by compressing traffic, caching files and web pages accessed by multiple users, and stripping ads from websites. This frees up precious bandwidth on busy networks, so your team can access the internet quickly and easily.
Title image by Matthew Wiebe
RJ Prego has focused his career on global data center management, global and regional colocation and network managed services and has a deep understanding of the latest developments in data center, telco, IT services, cloud and CDN.
What Is the Purpose of a Proxy Server? - Small Business ...

What Is the Purpose of a Proxy Server? – Small Business …

A proxy server is a special type of network node that alters packets that pass through it, masking their IP addresses and making it seem that the packets originated at the proxy system. Proxy servers may be a natural part of your network architecture, or they may be third-party servers that provide anonymity to their users. Using a proxy can help mask your activities online from prying eyes, but it can also open up your business’s computer network to a host of security threats. Networking In some cases, a proxy server may be required due to your networking configuration. If you have multiple PCs in your home, the router provided by your Internet service provider serves as a sort of proxy for your system. All outgoing traffic first travels to the router, which serves as your connection to the outside world. From the perspective of the Internet, all your traffic seems to come from a single IP address, no matter how many machines you connect on your side of the router. Access Control In some cases, a proxy may serve as a central node for logging or filtering Internet traffic. A company may route all traffic through an internal proxy in order to prevent users from accessing sites that are not work related and many even contain inappropriate content, as well as to record the activities of its users online. A proxy may also require a username and password for Internet access, preventing unauthorized users from spending time online on non-company business. A proxy server can also cache commonly accessed resources, reducing the amount of network traffic and improving response times for users. Anonymity Since all traffic routed through a proxy appears to originate from that proxy, some users take advantage of this system for anonymity purposes. Using an external proxy can make it difficult for a third party to track your activities online. It is important to note, however, that the owner of a proxy can easily monitor activity that passes through it, so using an insecure proxy may open you up to many security risks. In addition, since your Web traffic must travel to the proxy server before it can navigate to the target server, this setup can introduce considerable amounts of latency and slow down your browsing session. International Proxies Proxies are also useful when you’re dealing with international restrictions. Some websites alter the content they provide based on the user’s home country, and using an international proxy that masks your country of origin can help bypass those restrictions. In extreme cases, users in countries that censor the Internet can use international proxies to access banned content, and free-speech advocates and activists can use the anonymity provided by proxies to share information freely with other users. References Writer Bio Milton Kazmeyer has worked in the insurance, financial and manufacturing fields and also served as a federal contractor. He began his writing career in 2007 and now works full-time as a writer and transcriptionist. His primary fields of expertise include computers, astronomy, alternative energy sources and the environment.

Frequently Asked Questions about what is the purpose of a proxy server_

What is the purpose of a proxy server quizlet?

A proxy or proxy server is basically another computer which serves as a hub through which internet requests are processed. It serves as an intermediary between your home machine and the rest of the computers on the internet.

What is special about a proxy server?

A proxy server reduces the chance of a breach. Proxy servers add an additional layer of security between your servers and outside traffic. Because proxy servers can face the internet and relay requests from computers outside the network, they act as a buffer.Jun 20, 2016

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