Virtual Private Network or commonly abbreviated and commonly known as VPN or VPN tunnel by definition is a mechanism connecting a point (or commonly with a node) on a computer network with another point through mediation of another network, in this case, a point can in the form of a local computer network (or commonly called a LAN) or a computer. Private properties in VPN are obtained because the best vpn 2021 is usually encrypted so it is safe from leads.
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While the term tunnel itself (apart from the word VPN) is a generic term that explains that a connection between points on a computer network is carried out through a ‘sort of tunnel’ between the two points. Types of tunnels, when viewed from the OSI Layer, can be in the form of tunnel layer 2 such as PPP tunnel, PPPoE tunnel, VLAN and so on, but it is not commonly referred as PPP VPN or VLAN VPN.
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VPN in procurement is divided into 2, namely:
VPN connection form is divided into 3, namely:
VPN security is divided into 2, namely:
Media VPN itself can be done through:
An overview of the Virtual Private Network (VPN) is shown in the figure. In general, the following scenarios are as follows,