VPN is a virtual private network. It is created by software or hardware devices on the server. Clients across the Internet can create a secure tunnel connection cable replacement and wireless connections. VPN seems to be as a local LAN. Through this network you can fully and safely, with minimal costs, connect your branch office LAN network anywhere in the world.
Many of us have a wifi router at home with an external disk or printer attached. Such a system has many advantages. You can easily share files, use Remote Desktop, put into operation a FTP server, or anything else. In large companies it is a good network matter of course. A necessary requirement is however a network access. I do not mean a situation where you're sitting in the office and you plug a cable into your laptop, that is quite a trivial matter. But, what if you need to print something on a printer located on the boss's table, update the status of goods in stock, have permanent access to a server, spreadsheets or download email from MS Exchange server? In the office, it is not a problem. Now, what if you are 1000 km away, and you have a laptop data card or are on holiday and you are limited by local conditions? Then there is VPN. In technologically advanced societies it is already in place - on the desktop icon you have a laptop with internet connection "to the company ." On the double click, wait a few seconds - and you're in business. Why not use the same comfort on a home network?
With the concept of VPN you can meet in many similar ways. In this text, the term VPN we have in mind is an encrypted connection (tunnel) to the local network over a public network (internet).
Wherever you are with a laptop connected to the internet and create a tunnel you will work in exactly the same way as when you connect at work via cable or via Wi-Fi. You will see the workgroup computers, network printers and shared documents. If your home computer is using Remote Desktop, log on to it from anywhere.