All our courseware is available under a CC-BY-SA 3.0 license. Why?

• First, we believe that the value of a class is derived from providing instructors recognised as leading experts in their field, not the courseware. Our instructors are not only recognised for their technical achievements, but they are active public speakers at international conferences and forums with an exceptional ability and passion for sharing their knowledge. Our instructors' value is especially prized during our class' hands-on sessions, which occupy more than half of class time, since they are able to pull on their vast experience in assisting attendees in isolating the source of issues they encounter and explaining the underlying theory and wider context pertaining to that topic.
• Second, we think it's great for past students to continue having access to the latest version of the courseware they used. Whether it be for keeping up-to-date or explore new material, future versions of our class material will always be available to you.
• Third, our company was built on and lives in the open source ecosystem. Sharing is fundamental to what we do every day.

We, of course, welcome any comments or updates you may have on our courseware. Please send feedback to courseware@opersys.com.