What Is A Virtual Private Network (VPN)?

A virtual private network (VPN) can be described as a network that utilizes public telecommunication networks to provide secure transmission of data as well as restricted access of classified data by unauthorized users. Seeing as the network is highly expandable and can be used for communication between a number of other remote departments like international offices and affiliate partner organizations, implementation of the technology could be a great company asset. A majority of organizations and individuals opt for the virtual private network as opposed to a private network since it is a much cheaper alternative and security offered is pretty much similar.

CyberGhostThe technology used to implement VPNs (an example of which is CyberGhost VPN) is known as tunneling, a term that is basically used to describe the use of GRE routing system in association with data encryption and tunneling protocols to heighten the level of data security. One of the most common tunneling protocols used for VPN infrastructure is the PPTP protocol. The protocol is responsible for allowing access to only the authorized users of the virtual private network thus thwarting the efforts of hackers to seize private information. On the other hand, encrypted tunneling and IP Security plays a big role in ensuring that data is protected while in transit.

There are basically three types of VPN infrastructure. The first type is the trusted VPN, which utilizes a third party network supplier to provide dedicated services. To achieve maximum security via a trusted VPN, it is vital to ensure that you set the routing path as well as the addressing sequence before transmitting any data via the network. The network provider basically takes care of this process, therefore guaranteeing secured data transmission. Transmitting of data via communication switches can compromise data security therefore it is best that data is transmitted via dedicated circuitry.

The other type of VPN infrastructure is the secure VPN. In this type of infrastructure, security measures are taken a notch higher ensuring that data is not tampered with or intercepted by unauthorized users. Data to be transmitted is usually encrypted and authentication settings put in place to ensure that only authorized users gain access to data. This freezes all the attempts of hackers to intercept information while on transit or using identity impersonation.

To come up with an infrastructure that guards against the different types of security breach including packet sniffing, routing diversions, alteration and modification of data on transit, the hybrid VPN infrastructure is implemented. The hybrid VPN, as the name might suggest, is a combination of both the trusted VPN and the Secure VPN. The combination of the two tightens up security, compensating for any loopholes in either of the previously mentioned infrastructures. This form of VPN can therefore be a reliable communication channel for safe teleconferencing, interdepartmental communication for organizations with branches in different regions and distance learning.

About Lee Munson

Lee's non-technical background allows him to write about internet security in a clear way that is understandable to both IT professionals and people just like you who need simple answers to your security questions.

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