1. Virtual Private Network

2. VPN
In the most basic definition, VPN is a connection which allows 2 computers or networks to communicate with each other across a public network.
It is a very good way to secure connection problems.

3. The data is sent between the 2 computers or networks through a virtual tunnel.
The virtual tunnel is the key component of the VPN because it forms a private link among the computers and networks.

4. Virtual Tunnel
The point-to-point connection that supports the encryption and the authentication of the data being transferred.
Tunnel allows the data to pass through in a secure way.

5. How is the tunnel created ?
encapsulation of data for transition
forming a fake address
conversion of the data to its original state

6. Advantages of VPN
saves money/ no additional equipment is needed (phones etc.)
it allows anyone with a good direct internet connection to reach their data.
provides a extranet connecting clients and workers.

7. Types of VPN connections
User to network
Network to network

8. 3 different protocols under VPN
Point-to-point Tunneling Protocol (PPTP)
Layer 2 Protocol (L2TP)
Internet Protocol Security (IPSec)