What're PureVPN Add-Ons and how to use 'em?

This vid contains simple intro & tips re PureVPN Add-Ons: "NAT Firewall Add-on", "Dedicated IP Add-on" and "Dedicated IP with DDoS Protection Add-on". Hit https://billing.purevpn.com/aff.php?aff=23180 to fully set up PureVPN on your computer today! Learn more?

* https://youtu.be/pLHfRoqw6Xo PureVPN in Linux via MATE Desktop Environment
* https://www.youtube.com/watch?v=xekqImD0e8U Prevent DNS Leak
* https://www.youtube.com/watch?v=9XSi4xRY8x8 Flush/Clear DNS Cache on Ubuntu 12.04/11.10