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Virtual definition wikipedia9/13/2023 ![]() VPNs can also be used to connect corporate offices to the larger branch offices, also known as site-to-site VPN. Many people also use a VPN to protect their internet activity while using public WiFi. VPNs are often used to access websites that are blocked in some countries, like China. As a result, VPNs help make one's online activities on the web anonymous and undecipherable. Similarly, the encryption process allows VPNs to offer anonymity by hiding the user and making it very hard for anyone to track them. People can use their computer to connect to their work network and see work websites that cannot be seen on the normal internet. In a business context, VPNs are often used to connect different office locations, or to allow people working from outside the company network to access its resources. When a message was changed, it is possible to detect this. Message integrity: Messages transported across the network cannot be changed easily while they are in transport.Sender authentication: People need to authenticate themselves, to be able to use the network.Confidentiality: The carrier network will route the data, but it will be unable to decrypt it.The VPN model can guarantee the following: To the users of the VPN, it will look like the computers were directly connected to each other. The carrier network will see the packets of data which it routes. Another network is used to carry the data, which is encrypted. Common usage scenario of a VPN: Connect different offices, let users connect from remote sitesĪ virtual private network, or VPN is a set of technologies which are used to link computers to create a private network.
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