A-VPN-Or-Virtual-Private-Network-Is-A-Private-Netw3 by Terence616Don


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									   A VPN or Virtual Private Network is a private
network setup to allow remote access to a remote
 network. The most common application of VPNs
  is to allow individuals to log into their company
  network from home or another remote location
and perform their tasks. This quick guide will help
   you in understanding the different aspects of
  protocol design, VPN security, network service
      outsourcing and technological standards.

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Essentially a VPN is a form of WAN or Wide Area Network The key feature of
the VPN is the ability to access the desired network through public channels
such as the internet rather than rely on private leased lines VPNs allow
restricted access to the network through the same cabling as your internet
connection, without compromising basic security
 VPNs can be used for remote access for client connections, LAN to LAN
inter-networking, or for controlled access within an intranet There are several
network protocols used in VPN developments (methods of authentication and
encryption for security purposes) such as; PPTP, L2TP, IPsec, and SOCKS
The authentication protocols allow VPN clients (remote portals) and servers
(host portals) to correctly establish the identity of users on the network, where
as the encryption protocols allow potentially sensitive data to be hidden from
the public
 With the growing popularity of Wi-Fi networks, VPNs have been implemented
as a security solution to prevent unauthorized usage VPNs are commonly
used for inter-networking In other words a VPN can be used to bridge two
separate networks together, by channeling all traffic between two remote
networks from one VPN server to another
 A major drawback of using VPNs is security VPNs require a comprehensive
understanding of network security, and requires careful installation and
monitoring to provide sufficient data vpn services protection when routed
through a public channel such as the internet Using a VPN removes the ability
to maintain stability of the channel from the organization or company as they
must rely on an ISP (internet service provider) and their quality of service
 Lastly VPN solutions acquired from different vendors are not always
compatible due to issues with technology standards
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