A VPN is a Virtual Private Network, an encrypted connection from one computer (e.g. a home one) to another network (e.g. a work one). It can also be between two networks.

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Using VPN and Wifi at the same time

I have a VPN to connect to my school's IT department (I volunteer with them), but I am having a problem. I have added the VPN to the Network Interface list in System Preferences, and can connect just ...