The Virtual Private Network System

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Introduction A virtual private network (VPN) is a system that utilizes public telecommunication infrastructure, such as the Internet, to offer remote offices or single users with safe access to their institution's network ( Collins, Keeley & Waye,2000). A virtual private network can be compared to an expensive system of held or rented lines that can only be utilized by a single organization. The aim of a VPN is to offer the institution with similar capabilities, but at very low costs (Hulsebosch,Belmont & Manke ,2011). A VPN functions by using the allocated public infrastructure while retaining confidentiality through safety processes and HYPERLINK "http://searchenterprisewan.techtarget.com/definition/tunneling"tunneling HYPERLINK "http://searchnetworking.techtarget.com/definition/protocol"protocols like the Layer Two Tunneling Protocol (HYPERLINK "http://searchenterprisewan.techtarget.com/definition/Layer-Two-Tunneling-Protocol"L2TP). In effect, the protocols, by encrypting data at the dispatching end and decrypting it at the receiving end, send the data via a tunnel that cannot be accessed by data that is not appropriately encrypted. An added degree of safety involves encrypting both the data and the originating and receiving system addresses.A VPN (Virtual Private Network) is therefore a means of generating a safer link to and from a network or computer system. VPNs have been utilized for years, but they have become stronger in recent years. They are reasonable and
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