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I have used Ivacy VPN with raspberry pi with the Debian-Wheezy/Raspbian OS. Work great and their support is super friendly.
 
Mainly, I have pfSense at my office and connect via OpenVPN in Windows or Viscosity on Mac.
On the laptop traveling, NordVPN, but use the OpenVPN app. The Nord app is a PITA to me.
 
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