What are VPNs?

Virtual Private Networks (or VPNs) secure data as it passes across public or shared networks. CBT Nuggets trainer Keith Barker explains how VPNs improve privacy and security when communicating over a network.

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[johnnewcomer]

Thank you for this series. I am NOT an IT or Cyber person but just needed some basic knowledge to help me understand the process for another work application. This helped give me a better idea of how things work at a basic level and clarified some key terms. Your teaching style really helps me stay interested (and the short sessions work great with my short attention span).

[anithasoundararajan]

Thank You, Keith for doing this. Very crisp, indeed.

[samanthastewart]

This video actually helped me learn a little more and I appreciate there are people like you out there helping us learn a little more!

[tahersadeghi]

Hi Keith. Could you please show the VPN activation in a CLI? Thank you for a great video.

[alyssag]

Thank you for this series. So valuable

[josecobo]

Hi, Thank you so much. Good Video but doesn't talk about what protocols are being used, key exchange mechanisms, phases etc... so many key topics missing that for sure we are going to be asked in the exam. I watch the whole video course, it is to general not specific and cisco questions are tricky.

[keithb]

What are you using to animate this?? I must know!

[ko]

How do I setup VPN site to site and remote VPN, what course Keith