CHAPTER9
Logging, Error Handling, and Intrusion Detection
What rolls down stairs alone or in pairs, and over your neighbor’s dog?What’s great for a snack, and fits on your back? It’s log, Log, LOG!It’s log, it’s log, it’s big, it’s heavy, it’s wood.It’s log, it’s log, it’s better than bad, it’s good.
—The Ren and Stimpy Show
Logging Basics
Logging is the heart of all accountability in software. We use logging to help test our application in development and we log in production so we can audit application runtime behavior. Logging is also critical for security forensics so we can understand what happened after the fact when bad things go down
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