-- Assumes basic Unix administration knowledge. Focuses on advanced system administration topics such as performance monitoring, presentation of data, system tuning, security and system hardening-- For the first time in one book, find advanced system administration, monitoring, troubleshooting and performance tuning concepts and techniques.-- Contains approximately 500 expertly tested tips, techniques, and solutions.-- "Use It" element shows how to implement solutions immediately-- "Quick Tip" element quickly introduces a problem, provides a concise solution, and goes on to supply a more detailed explanation for those who would like to delve deeper.