Virtual private network

Subject :Science and technology

Section: Awareness in IT

What is a VPN?

A virtual private network, or VPN, is an encrypted connection over the Internet from a device to a network.
The encrypted connection helps ensure that sensitive data is safely transmitted. It prevents unauthorized people from eavesdropping on the traffic and allows the user to conduct work remotely.
VPN technology is widely used in corporate environments.
As it is totally disconnected from the rest of the web, it is a secure system. The network can be used safely by the government, companies, and military to utilise system resources.

How does a virtual private network (VPN) work?

A VPN extends a corporate network through encrypted connections made over the Internet. Because the traffic is encrypted between the device and the network, traffic remains private as it travels.
An employee can work outside the office and still securely connect to the corporate network. Even smartphones and tablets can connect through a VPN.

Is VPN traffic encrypted?

Yes, traffic on the virtual network is sent securely by establishing an encrypted connection across the Internet known as a tunnel.
VPN traffic from a device such as a computer, tablet, or smartphone is encrypted as it travels through this tunnel. Offsite employees can then use the virtual network to access the corporate network.

Protocols of VPN

To build stable networks, there are many distinct VPN protocols are used. Some protocols of this kind are listed below