What Is a VPN

Put simply, a Virtual Private Network, or VPN, is a group of computers (or discrete networks) networked together over a publicWhat Is a VPN  network—namely, the internet. BusinessesWhat Is a VPN  use VPNs to connect remote datacenters, What Is a VPN and individuals can use VPNs to get access to network resources when they’re not physically on the same LAN (local area network), or as a method for securing and encrypting their communications when they’re using an untrusted public network. Photo by Pavel Ignatov (Shutterstock).

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When you connect to a VPN, you usually launch a VPN client on your computer (or click a link on a special website), log in with your credentials, and your computer exchanges trusted keys with a far away server. Once both computers have verified each other as authentic, all of your internet communication is encrypted and secured from eavesdropping.

The most important thing you need to know about a VPN: It secures your computer’s internet connection What Is a VPN to guarantee that all of the data you’re sending and receiving is encrypted and secured from prying eyes.

Whether the VPNs you’re familiar with are the ones offered by your school or business to help you work or stay connected when you’re traveling or the ones you pay to get you watch your favorite shows in another country as they air, they’re all doing the same thing. For much more detail on what VPNs are, how they work, and how they’re used, check out this How Stuff Works article.

Why You Should Start Using a VPN (and How to Choose the Best One for Your Needs)
Why You Need a VPN, or How You Can Benefit from Using One

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A VPN alone is just a way to bolster your security and access resources on a network you’re not physically What Is a VPN connected to. What you choose to do with a VPN is a different story. Usually, VPN users fall into a few separate categories:

The student/worker. This person has responsibilities to attend to, and uses a VPN provided by their school What Is a VPN or company to access resources on their network when they’re at home or traveling. In most cases, this person already has a free VPN service provided to them, so they’re not exactly shopping around. Also, if they’re worried about security, they can always fire up their VPN when using airport or cafe WI-Fi to ensure no one’s snooping on their connection. Photo by Ed Yourdon.
The downloader. Whether they’re downloading legally or illegally, this person doesn’t want on some company’s witch-hunt list just because they have a torrenting app installed on their computer. VPNs are the only way to stay safe when using something like BitTorrent—everything else is just a false sense of security. Better safe than trying to defend yourself in court or paying a massive fine for something you may or may not have even done, right?
The privacy minded and security advocate. Whether they’re a in a strictly monitored environment or a completely free and open one, this person uses VPN services to keep their communications secure and encrypted and away from prying eyes whether they’re at home or abroad. To them, unsecured connections mean someone’s reading what you say.

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Why You Should Start Using a VPN (and How to Choose the Best One for Your Needs)
The globetrotter. This person wants to watch the Olympics live as they happen, without dealing with their crummy What Is a VPN local networks. They want to check out their favorite TV shows as they air instead of waiting for translations or re-broadcasts (or watch the versions aired in other countries,) listen to location-restricted streaming internet radio, or want to use a new web service or application that looks great but for some reason is limited to a specific country or region.
Some combination of the above. Odds are, even if you’re not one of these people more often than not, you’re some mix of them depending on what you’re doing. In all of these cases, a VPN service can be helpful, whether it’s just a matter of protecting yourself when you’re out and about, whether you handle sensitive data for your job and don’t want to get fired, or you’re just covering your own ass from the MPAA.
Even if none of the above really sound right to you, you can still benefit from using a VPN. You should definitely use one when you travel or work on an untrusted network (read: a network you don’t own, manage, or trust who manages.) That means opening your laptop at the coffee shop and logging in to Facebook or using your phone’s Wi-Fi to check your email at the airport can all potentially put you at risk.

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We’ve shown you how to build your own VPN for remote gaming and browsing that also protects your security, shown you how to make a VPN even more secure, and shown you dozens of services that operate free and paid VPNs you can sign up for and use. We’ve even put the question to you several times to tell us which VPN service providers you think are the best. So how do you pick a solid VPN service?

A virtual private network (VPN) extends a private network across a public network, such as the Internet. It enables a computer or network-enabled device to sخرید vpn end and receive data across shared or public networks as if it were directly connected to the private network, while benefiting from the functionality, security and management policies of the private network.A VPN is created by establishing a virtual point-to-point connection through the use of dedicated connections, virtual tunneling protocols, or traffic encryption. Major implementations of VPNs include OpenVPN and IPsec. خرید کریو

A VPN connection across the Internet is similar to a wide area network (WAN) link between websites. From a user perspective, the extended network resources are accessed in the same way as resources available within the private network. One major limitation of traditional VPNs is that they are point-to-point, and do not tend to support or connectbroadcast domains. Therefore communication, software, and networking, which are based on layer 2 and broadcastpackets, such as NetBIOS used in Windows networking, may not be fully supported or work exactly as they would on a real LAN. Variants on VPN, such as Virtual Private LAN Service (VPLS), and layer 2 tunneling protocols, are designed to overcome this limitatio

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You have at least four great reasons to start using a VPN. First, you can use it to connect securely to a remote network via the Internet. Most companies maintain VPNs so that employees can access files, applications, printers, and other resources on the office network

 

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without compromising security, but you can also set up your own VPN to safely access your secure home network while you’re on the road.

Second, VPNs are particularly useful for connecting multiple networks together securely. For this reason, most businesses big and small rely on a VPN to share servers and other networked resources among multiple offices or stores across the globe. Even if you don’t  What Is a VPNhave a chain of offices to worry about, you can use the same trick to connect multiple home networks or other networks for personal use

Third, if you’re concerned about your online privacy, connecting to an encrypted VPN while you’re on a public or untrusted network—such as a Wi-Fi hotspot in a hotel or coffee shop—is a smart, simple security practice. Because the VPN encrypts your Internet traffic, it helps to stymie other people who may be trying to snoop on your browsing via Wi-Fi to capture your passwords.

Fourth and finally, one of the best reasons to use a VPN is to circumvent regional restrictions—known as geoblocking—on certain websites. Journalists and political dissidents use VPNs to get around state-sponsored censorship all the time, but you can also use a VPN for recreational purposes, such as connecting to a British VPN to watch the BBC iPlayer outside the UK. Because your Internet What Is a VPN traffic routes through the VPN, it looks as if you’re just another British visitor.

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