Understanding the Technology behind VPN

In the past decade, the use of internet has seen a major growth and more number of organizations have started to depend on the internet, especially for communication purposes. This has attracted organizations towards the Virtual Private Network (VPN) for augmenting their networking capabilities and also for reducing costs. VPNs are widely being used in homes and workplaces, which enable employees to log in to their company networks securely. Expatriates and telecommuters find VPNs a more useful way to remain connected to their corporate intranet. With so many benefits already, it is always good to understand the technology behind a VPN.

The Terminology

A virtual private network (VPN) is basically a private data network that uses the public telecommunication infrastructure, upholding privacy by way of a tunneling protocol and different security procedures. A VPN braces the following three modes of use:

  • LAN-to-LAN Networking
  • Remote Access Client Connections, and
  • Controlled Access Within An Intranet

Technologies Used

The three most important technologies of VPN include: secure VPNs, trusted VPNs, and hybrid VPNs. Among these, trusted VPNs and secure VPNs usually exist together in a single VPN service package, and are not technically allied.

Secure VPNs

As vast number of enterprises has started considering internet as a medium of corporate communications, security has become a crucial issue for both providers and customers. To cater to this need, vendors began to develop protocols that allow the encryption of traffic at the incipient computer or at the beginning of one network, transferred through the internet, and then decrypted when it arrived at the recipient computer or the corporate network.

The encrypted traffic imitates the form of a tunnel amid the two networks. This traffic cannot be read or altered by a hacker or a cybercriminal, without the alterations being spotted at the receiving end and hence rejected. Networks that are built using such encryption are known as secure VPNs.

Trusted VPNs

Unlike secure VPNs, trusted VPNs do not provide ultimate security to networks, and customers simply trust the VPN service provider to keep up the coherence of the circuits and to make use of the best possible business procedures to prevent prying of the network traffic. Hence the name trusted VPNs.

Hybrid VPNs

A Hybrid VPN emerges when a secure VPN is made to exist together as a part of a trusted VPN. The secure part of this VPN can be managed by the customers themselves (by using a personal secure VPN device on their websites) or by the provider that offers the trusted VPN portion of the hybrid VPN. In some cases, the whole of the hybrid VPN can be secured by the secure VPN.

Secure VPNs remain the best choice among businesses, as they need to transmit sensitive and valuable business information over the internet without worrying about security issues.

Top VPN Services

A wide variety of VPN products and services furnished by a vast number of vendors keeps on evolving. Hence, it becomes crucial to identify the best vendor offering the best available VPN services. Following chart displays the top 5 VPN services that offer the best of all benefits.

Rank Provider Name Starting Price Money Back Guarantee
Visit Provider Site
1 express VPN $6.67/ Month 30 Days visit expressvpn
2 $11.52/ Month 30 Days visit expressvpn
3 $14.95/Month 7 Days visit vyprvpn
4 IpVanish VPN $10.00/ Month 7 Days visit ipvanish
5 $21/ 3 Months 7 Days visit strongvpn
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