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If you are familiar with VPN and the vagaries of how things work on modern computers (and particularly on Linux) you can skip it.
Certainly, if you want to cut to the chase, head for part 2!
VPN - 'virtual private network' - is a technology that allows a user physically The organization will run a server which listens on a particular address for personnel to call in and request access.
The user (i.e., you) will run a VPN client on their own computer, which will call up the VPN server and ask to be allowed to connect.
Assuming the user can provide a recognized username and password when challenged by the server, the server and client machines will then negotiate a secure (i.e. Once this channel is established, the two machines can talk to each other without fear of anyone overhearing what they are saying, and your company boss will then think it's ok for you to upload/download sensitive company data over this channel.There is more than one way to VPN - any system that can establish a secure channel between you and your workplace, and then route all your communications over that channel, constitutes a VPN.If not, the remainder of this document will walk you through the process in more detail, and hopefully will help you get sorted!If you are familiar with VPN connections under Microsoft Windows, you might still benefit from reading this section.
Many companies and universities (and some home users) run a 'local area network' (LAN) in their buildings, where many computers are connected together so that employees or students can share resources (printers, shared files, etc.).
The people running these networks do not want the public (that is, the rest of the internet) to have access to their local network - considered private - so they secure it.