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What is a VPN

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A VPN, Virtual Private Network, is a set of technologies used to connect computers on different networks to each other; securely.

 

Virtual Private Network VPN extends a private network across a public network and enables users to send and receive data across shared or public networks as if their computing devices were directly connected to the private network.

 

Let’s break that down. You’re at home. You have your laptop out and connected to your home network via WiFi. You can happily work on your documents, print them out and surf the internet with no problems at all.

 

Now, you need to access the latest copy of the payroll spreadsheet that resides on the server in the office. How do you do this securely?

 

The answer, of course, is a VPN. Again, a VPN Server is set up in the office, and a VPN Client, in this case, your laptop at home, is configured to connect to the VPN Server. 

 

When you need to access resources located on the office network, you start the VPN connection. 

 

This connection provides an encrypted tunnel between your laptop and the VPN server. You can now connect securely to the resources in the office as if you were sitting at your desk.

 

While you’re connected to the VPN, data between you and the VPN Server is sent over the encrypted connection.

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