This comprehensive book covers system administration through capturing the process of building a system from the ground-up. Case studies and real-world examples are based on the author's extensive experience and reveal underlying concepts and valuable insights into how both small and large environments are administered. Its featured practical exercises--which focus on examples from long-lasting and emerging or old technologies that recently found wider adoption--allow for immediate application of the core principles in ways that provide readers and students with valuable expertise that is currently in high demand.