How VPN
A well-designed VPN service will give you the benefits of using a number of methods to keep your data safe and secure connection. Here are a few of these;
Data confidentiality
This is one of the most important services that the VPN will provide. It is very important due to the fact that your data traveling on a public network and should go with some form of protection against infiltration by external threats. Data confidentiality is achieved by encrypting the data a VPN reaches very effective. Basically VPN works by taking all the data that comes from a computer and encoding data in a form that the other computer will be able to decode. VPN encode data using a number of protocols such as IPSec, PPTP and L2TP.
Data Integrity
Data encryption is very important but to ensure that the data was not modified in any way on its way to the other computer is equally important. A good VPN provider will not only ensure that the data is properly encrypted, but data are not modified or interfered with in any way. Many VPNs will also authenticate the origin of the data is extremely important to guard against a number of attacks that can come from the sender.
Data Tunneling
This is the encapsulation process of a data packet completely with another data packet, then the send over a network. It is very effective, especially when driving traffic would remain anonymous. VPN uses this process to ensure anonymity and therefore complete security for both data receiver and data origin. Tunneling requires three additional protocols to ensure that it effectively provides the necessary security. These protocols are the passenger protocol, an encapsulation protocol and the bearer protocol. The passenger protocol is that responsible for the encapsulation process which is carried in the transport protocol that is used by the network to which the information flows. The passenger protocol is also responsible for the encryption process
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