Red Hat RHCSA/RHCE 7 Cert Guide: Red Hat Enterprise Linux 7 (EX200 and EX300) (Certification Guide) About the Author Sander van Vugt is an independent Linux trainer, author, and consultant living in the Netherlands. Sander is the author of the best-selling Red Hat Certified System Administrator (RHCSA) Complete Video Course and also of the Red Hat Certified Engineer (RHCE) Complete Video Course. He has also written numerous books about different Linux-related topics, and many articles for Linux publications around the world. Sander has been teaching Red Hat, SUSE, and LPI Linux classes since 1994. As a consultant, he specializes in Linux high-availability solutions and performance optimization. You can find more information about Sander on his website at http://www.sandervanvugt.com .   For more information about RHAT certification and additional resources, visit the author’s Red Hat Certification page at http://www.rhatcert.com/.