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Practice of System and Network Administration, The: DevOps and other Best Practices for Enterprise IT, Volume 1 by Christina J. Hogan, Strata R. Chalup, Thomas A. Limoncelli

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Chapter 29. Debugging

In this chapter, we dig deeply into what is involved in debugging problems. In Chapter 28, “Handling an Incident Report,” we put debugging into the larger context of customer care. This chapter, in contrast, is about you and what you do when faced with a single technical problem.

Debugging is not simply making a change that fixes a problem. That’s the easy part. Debugging begins with you understanding the problem, finding its cause, and then making the change that makes the problem disappear for good. Temporary or superficial fixes, such as rebooting, that do not fix the cause of the problem merely guarantee more work for you in the future. We continue that theme in Chapter 30, “Fixing Things Once.”

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