For the Linux Admin Course, additional software is not required.
You'll get practice through the use of online simulations that mimic a UNIX command-line environment.
If you have a UNIX machine and system administrator privileges, you can also try the exercises on your own to learn more about how your specific system works.

These books are not required to take this course, but do contain helpful additional information.
You can reach the Bookstore page at any time by clicking the DistributedNetworks Store