https://jonmccaslinjazzdrummer.blogspot.com/2015/06/ralph-peterson-jr-webcast.html
FOUR ON THE FLOOR: Ralph Peterson Jr. Webcast
Courtesy of the nice people over at mycymbal.com here's a complete masterclass with Ralph Peterson Jr. demonstrating...
four on the floorralph petersonjrwebcast
https://dale-peterson.com/2015/12/09/ralph-langner-ot-security-course-added-to-s4x16-friday/
Ralph Langner OT Security Course Added To S4x16 Friday - Dale Peterson: ICS Security Catalyst
May 22, 2019 - Register Now for S4x16 and Advanced ICS Security Training As the existing courses are nearing capacity, we have added the course Building A Robust OT Security...