What is VPN?
VPN (virtual private network is a secure tunnel between two network points. Traffic encryption before transmission and reverse decoding by the receiving side is its main feature. This results in reliable confidential data protection from hacking attempts and virus attacks.
VPN allows companies and organizations, having an extensive office facilities network, to connect to remote subscribers shared resources. The company’s resources usage by employees, working at dedicated workplaces via the Internet, is absolutely safe. Below are provided the most common VPN types:
- PPTP VPN Data Tunneling Protocol provides data transmission over a public Internet channel, which perfectly fits home usage and remote office work.
- Site-to-Site VPN technology provides several local networks connection to a single data exchange space as well as guarantees a high security and protection level against hacking attempts.
- IPsec PPTP protocol called encrypts and inspects each data packet, when installing a tunnel between points. Long installation time of various user apps is its only disadvantage.
- Layer 2 Tunneling Protocol or L2TP VPN provides more reliable and secure connection, compared to PPTP, and uses IPsec to encrypt data as well.
- SSL and TSL technologies provide user with an access to individual apps on the resource, while being actively used in goods and services sales online and are embedded in most modern browsers.
Besides there are some other VPN options in addition to protocols, mentioned above. Multiprotocol Label Switching (MPLS) technology, intended for site-to-site connection, is highly demanded.
Hybrid virtual private network combines MPLS and IPsec protocols. You need to determine the required data security level when choosing VPN type. Confidential data requires highly encrypted private network. But it is enough to use a simple and inexpensive VPN at the initial stage.