David Clinton is a Linux server administrator who has worked with IT infrastructure in academic and enterprise environments. He has taught video courses for Amazon Web Services, as well as other technologies. He is a co-author of AWS Certified Solutions Architect Study Guide: Associate (SAA-C01) Exam and AWS Certified Cloud Practitioner Study Guide: Foundational (CLF-C01) Exam. Christopher Negus is a senior open source technical writer at Amazon Web Services. He has written dozens of books on Linux, including Red Hat Linux Bible, Linux Troubleshooting Bible and Linux Toys.