The Ins and Outs of a VPN

Any business that expands to multiple locations around the world requires a fast and reliable way to keep its data accessible by its employees, and for employees to connect to company's servers over a secure line from a remote location.

VPN, or virtual private network, is a technology that enables businesses to accomplish its goal of data secure and connectivity. It's a private network that connects remote sites or users together using a public network such as the Internet. The prime reason for using a VPN is that secures the data and prevents anyone intercepting the encrypted data from reading it.

Understanding How the VPN Works

The internet is like an ocean, which has various islands representing LANs. Just as travelling from one island to another via a ferry isn't private, in the same way, the wires and routers constituting the internet are not private. Essentially, any connection between two private networks using the internet is susceptible to security issues.

For obvious reasons, a business that uses the internet has to protect its data, and that is where the VPN enters. It allows users to communicate using the internet and connect with a private LAN in a secure and reliable manner. VPNs can also be expanded to accommodate more users from different locations.

Common Types of VPN

A site-to-site VPN is one common type of VPN that connects multiple fixed locations. It allows a business to extend its network making computer resources available to employees from one location to another. A company that is growing its offices in multiple locations around the world is a perfect example of a company in need of VPN.

The Two Types Of Site-To-Site VPNs Include:

Intranet based
An intranet VPN can be used to connect each separate LAN to a single WAN. It is suitable for companies that have one or more remote locations to be connected to a single private network.

Extranet based

An extranet VPN can be built between two companies that are closely related and wish to connect its LANs. The extranet-based VPN will allow the two companies to work in a shared network environment, which is secure and reliable.

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