Endwall
No. 151 [Reply] report 
Hak5 2019
OpenVPN from scratch
https://youtube.com/watch?v=XcsQdtsCS1U
Hack5 2017
How to build an OpenVPN access point pt 1
https://www.youtube.com/watch?v=XDCv_xxw4BW4
Hack5 2018
How to build an OpenVPN access point pt 2
https://www.youtube.com/watch?v=z156R47Yb_Q