About the Author

Don R. Crawley, CCNA Security, Linux+, shares his 35 years of technology experience and 17 years as a technical trainer in the Accidental Administrator book series. Don is the author of The Compassionate Geek: Mastering Customer Service for IT Professionals, Tweeting Linux: 140 Linux Configuration Commands Explained in 140 Characters or Less, and two other Accidental Administrator titles. In addition, he is President/Chief Technologist at soundtraining.net, the Seattle-based firm providing accelerated training for IT professionals on Cisco and Linux products, as well as workplace skills for IT pros.