What is VPN? How does VPN working?
What a VPN is in plain words: how the encrypted tunnel works, which protocols exist and what it protects you from.
VPN – Virtual Private Network
The technology has long been known and widely used in building networks, providing access from local subnets to the Internet, or other private or corporate networks. Initially, this technology was developed for corporations that have offices in different cities or countries. For full-fledged work, they needed to have access to files and devices on different networks, just as if they were on the same network, so the VPN was invented.
How does VPN work?
VPN is a software and hardware complex where a client and a server exist. The server is installed special software that allows you to accept connections from the client. Having connected to the server, the client is identified on the server’s network as a local computer and can use all the capabilities of the network in which the server is located. The Internet is used as a transport network and can have an infinite number of intermediate connections.
What is VPN?
There are several types and types of protocols used for communication. RocketVPN offers eight of them in one subscription — see the protocol comparison. One of the most widely supported is L2TP/IPsec:
L2TP / IPsec (Layer 2 Tunnel Protocol) is a Layer 2 tunnelling protocol. This protocol itself does not encrypt data, so for additional security and privacy, the additional protocol IPsec is used. This protocol in conjunction with L2TP is currently the most secure because they do not have any serious vulnerabilities. Most often this protocol is used on mobile devices.
What is VPN used for?
Nowadays, when many states have stepped up their efforts to combat the freedom to disseminate information on the Internet, VPN is becoming increasingly relevant. Through the use of such technologies, users retain the ability to transmit and receive information without restriction. Also important is the fact that using a VPN, the user becomes the most protected from intruders on the network who can not get unauthorized access to his data.
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