The virtual private network which can be abbreviated as VPN and its main function is to basically broaden or extend a private network across a public one. To become more specific, the term VPN is actually a designed technology that can maintain the confidential of the people in the online world and can also protect the people’s activities; and this is actually the answer to the request of the people to have online privacy. The VPN or the virtual private network also allows, permits and enables the users to obtain and send data and information across the public and shared networks, as if their mobile devices are connected directly to a network that is identified as private. A VPN system can be classified in various ways, such as by the type of topology of connections such as network to network or site to site; by the number of simultaneous or concurrent connections; by the OSI or open systems interconnection layer that the system may present or show to the connecting network; by the different levels of security they may provide to their users; by their tunnelling protocol used to runnel the traffic; and by the termination point location of the tunnel such as on the network-provider edge or customer edge. There are basically a lot of functions of the security model of a VPN or virtual private network; and some of the most common ones include confidentiality in which the attacker or the unauthorized users would only see the data that are encrypted; sender authentication that can prevent the users that are unauthorized to have access with the VPN system; and message integrity which can help detect any occurrences or instances of tampering with the messages that are being transmitted. Some of the common advantages and benefits that a person may obtain from using VPN include the ability to have access in blocked websites and bypassing filters in the internet; the ability to share files or data for an extended period of time; the ability to enhanced their security because their data are all secured and encrypted; the ability to remotely access the information everywhere they may go thus can improve and increase productivity; the ability to have complete anonymity while browsing the web; and the ability to change the IP or internet protocol address.
There are absolutely a lot of VPN providers all over the internet, and one of the best, the fastest and the most reliable providers of the VPN system is the Virtual Shield. The said company does not only focus in keeping the data of their customers safe in the internet world, but they also provide their customers with the chance to defeat censorship and to save more money by gaining better deals. The VPN system that they offer is in application form, which can be downloaded by their clients or customers on their iPhone, iPad, Mac, Android and Chrome devices. The Virtual Shield has their very own website which can be found in the internet.