Every user of the World Wide Web is already familiar with VPN technology and its principles of operation. In addition, it is useful to know the types of protocols, as well as all their properties, both positive and negative. This information will help you choose the most suitable option when connecting.
PPTP VPN is a tunnel through which data is transferred from point to point. This type of protocol is considered one of the most popular and makes it possible to connect to a VPN through existing connections to the World Wide Web. This option is optimal for both domestic use and business. PPTP does not require specialized equipment. It can be used with inexpensive and simple applications. The technology is compatible with any operating systems. Against the background of the mass of positive characteristics, there is one significant drawback of the protocol - it cannot guarantee a network user an adequate level of security, which makes it incapable of use by serious companies and to perform important tasks.
The so-called Layer 2 tunneling protocol is L2TP, created by leading developers from Microsoft and Cisco. During operation, the VPN connects to other types of protocols, which ensures maximum security. In this case, a tunnel is also created between the connection nodes, as well as using another protocol. Thus, data encryption takes place and the safety of the user's personal information is ensured. The difference between L2TP and PPTP is that the first type is able to provide reliable data security.
VPN IPsec is used when the highest level of data security is required. He establishes a tunnel to a remote node, while all sessions are verified and the information is encrypted. IPsec can work in tunnel and transport mode, each of which is used to protect data between networks. In the first mode, encryption of the entire packet of information occurs, in the second, encryption of messages inside the packet takes place. IPsec has a significant advantage over other types of protocols - it can be used as an addition to others, which greatly increases security. At the same time, it is not without drawbacks, the main of which is the long installation time of the client application.
SSL and TLS protocols work in one system. The first is necessary to ensure data protection, and the second is for the security of information in transport mode. Thanks to the virtual private network with these protocols, each user can access all the resources on the network. They are also actively used in online sales, which guarantees a secure connection between the browser and the server on which the sale application is located. Any browser can easily connect to SSL without any unnecessary gestures.
It turns out that choosing the right VPN is not so simple. To correctly determine the type of protocol, it is initially necessary to determine the type of security. This is influenced by your occupation and level of secrecy. It should also take into account financial capacity and willingness to pay for the protection of information. Answers to these questions will help you pinpoint the type of protocol that will provide sufficient protection for your Internet connection.