This chapter, which happens to be the first chapter, is probably the most important and least technical. Most chapters in this book cover specific issues and the commands necessary to troubleshoot those issues. This chapter, however, will cover some troubleshooting best practices that can be applied to any issue.
You can think of this chapter as the principles behind the practices being applied.
Before covering the best practices of troubleshooting, it is important to understand the different styles of troubleshooting. In my experience, I have found that people tend to use one of three styles of troubleshooting, which are as follows: