What are the types of VPNs?
OpenVPN
OpenVPN — optimal in terms of a set of characteristics (speed, degree of protection and reliability). It is used as the main one by most VPN services. His plus — open source. This allows third-party developers to study it and look for vulnerabilities. If it is found, the owner company is promptly notified to eliminate it; Provides high speed, degree of protection and reliability of the connection. It is used as the main one by most VPN services. It is open source, allowing third-party developers to study it and find vulnerabilities.
L2TP/IPSec
The main alternative to OpenVPN. The protocol has an advanced security system that cannot be hacked if properly configured. At the same time, an increased level of security reduces the data transfer rate. However, its reputation is much lower. The latest leaks suggest that the US National Security Agency (NSA) has encryption keys for it;
IKEv2
Used to work on smartphones. The main feature — the ability to automatically reconnect to the network after a connection break. It also has a high data transfer rate. At the same time, services are difficult to install and are compatible with a limited number of operating systems. The main feature — the ability to automatically reconnect to the network when the connection is broken (for example, in a subway tunnel). Another advantage — high data transfer rate. Among the disadvantages — limited number of compatible operating systems and installation complexity;
PPTP
It was developed about 20 years ago. All operating systems support it. It has a high connection speed, can mask the user's IP address, but does not provide 100% data protection from decryption. A popular and at the same time the most unreliable protocol. It has a high connection speed and an extremely low level of security. It has been proven that the US NSA has encryption keys on it.
WireGuard
Combines the reliability of OpenVPN with the high speed of IKEv2. latest generation protocol. It is open source.
SSTP
Protocol for running on Windows. It is Microsoft's own development. It is fast and easy to set up, but difficult to install on other operating systems. Easy to set up, fast work. Minus — complexity of installation on other operating systems;