David Clinton is a system administrator, teacher, and writer. He has administered, written about, and created training material for many important technology subjects including Linux systems, cloud computing (AWS in particular), and container technologies like Docker. Many of his video training courses can be found on Pluralsight.com, and links to his other books (on Linux administration and server virtualization) can be found at bootstrap-it.com.

Christopher Negus has been teaching and writing about Linux and UNIX for over 25 years. He's an instructor and principal technical writer for Red Hat, Inc., and the author of dozens of Linux and UNIX books, including every edition of the Red Hat Linux Bible, CentOS Bible, Fedora Bible, Ubuntu Linux Toolbox, and more.