A VPN, or Virtual Private Network, is used to securely connect to another network via a public or a private network. A VPN creates a private network within a broader network, thus providing added-security using encryption and network tunneling mechanisms. A VPN is like a bridge that connects two islands (here, LANs) to establish an private, secure and more reliable connection between the two islands (here, local networks). This helps ease security and privacy issues; since the data transmitted over a VPN is encrypted and unreadable to general Internet community. There are two types of VPNs, namely remote-access VPN and site-to-site VPN.
A site-to-site VPN helps establish a secure connection between two sites or locations, over a public network such as the Internet. A site-to-site VPN may extend two network into a single network (Intranet VPN), or interconnect two separate networks while maintaining its locality (Extranet VPN).
A VPN uses the mechanism of tunneling to create a private network across the Internet. Tunneling is a network technology that involves the process of layering of capsules, known as encapsulation. In this process, series of packets are created by breaking down each data file, and an entire packet is placed within another outer packet before it is sent and received across the computers. Movement of the encrypted packet within an outer packet, also known as virtual tunnel, ensures secured transfer.
The VPN technology makes use of a tunnel management protocol mechanism that helps create, maintain, and terminate the tunnel, which enables seamless data transfer. Meanwhile, devices or computers that are present at both ends of the tunnel are known as tunnel interfaces, which facilitate the process of encapsulation and reopening of outgoing and incoming packets respectively.
There are several advantages of using a VPN service ranging from bypassing internet censorship to accessing global content without any geo-restrictions, added internet security, and anonymous browsing. Most basic properties of VPNs that distinguish them from other personal networks are as below:
Security: VPNs provide high security, thus protecting users’ data from being hacked, especially on a public network.
Reliability: VPNs are accompanied with high reliability standards, providing similar quality of connection for each user while handling multiple and simultaneous connections.
Scalability: VPNs can easily be expanded to accommodate more users and different locations when compared to leased lines. This enables the expansion of in-house VPN services without the need for replacement of the technology on the whole.
Flexibility: VPNs provide a flexible option for remote offices to use a common professional intranet over an existing connection, as though they are directly connected to the internet.
Besides the notable features described above, a personal VPN offers following advantages.
In order to use above mentioned privileges of secured and anonymous internet browsing, there is a need for a best-of-its-kind VPN service subscription. There are a few VPN service providers in the market, however choosing a provider needs lot of research. To make this job easier, we have compiled a list of VPN providers that are top-rated in the current market. We recommend our readers to explore the VPN services offered by Hide My Ass to hide IP and protect your identity online.
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