Virtual Private Networks, or VPNs, have become a commonplace in millions of people’s lives as well as their work environments. They allow computers connected to the internet via separate networks (LANs), in different places, to communicate with each other without the need for anyone to intercept or see the information.
These VPNs are essential for employees on the move. They can connect to their local networks from anywhere, including satellite offices or home. Private individuals also have access to their home networks while they are out and about. Any device can be used to connect to the local network via VPNs, including a desktop, laptop, tablet, or mobile phone. They are available from any location, as long as there is an internet connection. VPNs can be used by some individuals to connect to other networks and then to the rest the world.
VPNs create a tunnel between two points (computers, networks, etc.) that allows all information to travel securely. These tunnels replace older systems like dedicated leased lines, which businesses used to have to purchase to connect to their local networks.
Virtual tunnels are actually the sending and receiving packets of encrypted information that are encapsulated in outer packets. Also, the outer packets are encrypted and pre-programmed to include their source and destination. Only the destination points can decrypt them. To ensure the connection is being used by the right users and devices, the packets are combined with authentication measures at both ends. Anyone intercepting packets on their journey over public networks will only be capable of determining the firewall/gateway server they are headed towards but not their destination or any data.
Types of VPN
Three types of vpn recommendation provide the same functionality as the one described above. They are computer-to–network VPNs or network-to–network VPNs.
Remote access VPNs or computer-to-network VPNs connect individual users to remote networks via the internet, just like if they were actually connected to the network. Simply install the software on your computer to create a secure connection to the VPN server or gateway on your local network. These are ideal for employees who work remotely or need to access files, networks, and systems from their workplace.
Site-to-site VPNs or network-to-network VPNs are shorthand for connecting two local networks over the internet to form one virtual network. VPN servers are used on each network and not software on individual computers. You can further break them down into Intranet and Extranet VPNs.
Intranets enable employees and users within the same organization to log in to a secure network that is connected from multiple offices. These intranets can only be used by the designated networks and are password protected. These intranets are ideal for companies with multiple locations. Employees can access the same files, folders, and systems without the need to duplicate them on each network or transfer them less securely across the internet.
Extranets function in the same way as regular networks, but they can be used to create a common space for users across different locations and organizations. These networks are managed by the respective network administrators and are thus under their control. A secure network that can be accessed by both their client and their supplier would be an example of a common example. Because the virtual network is more restricted, the organizations won’t be able to access each other’s intranets or networks.