Michael Jang, RHCE, LPIC-2, UCP, LCP, Linux+, MCP is currently a Senior Technical Writer for ForgeRock. He has written numerous books on Linux certification, including LPIC-1 in Depth, Mike Meyers' Linux+ Certification Passport, and Sair GNU/Linux Installation and Configuration Exam Cram. He is also the author of RHCSA/RHCE Red Hat Linux Certification Practice Exams with Virtual Machines.

Alessandro Orsaria, RHCE, RHCA, CCIE x 2, is an IT professional with more than 15 years of experience in the industry. He has authored articles for technical Linux magazines and is currently employed by a global equity hedge fund as an IT Infrastructure Architect.