DevOps Troubleshooting Linux Server Best Practices

The DevOps approach to system administration describes a world where Linux developers and sysadmins work far more closely than in traditional environments. DevOps is optimized to support today's confluence of Linux trends, including cloud migrations, the rise of startups using hosted services, greater requirements to analyze big data, and the transition to NoSQL databases. One of DevOps'most powerful benefits is its support for better, faster troubleshooting. In this book, pioneering Linux sysadmin Kyle Rankin teaches DevOps'standardized, repeatable troubleshooting techniques, showing administrators and developers how to work together to reduce costs and improve effectiveness. Rankin helps both developers and admins fill the gaps in their respective troubleshooting skillsets, so they can stop pointing fingers - and start getting results. Writing clearly and simply, he walks through using DevOps techniques to identify and resolve these and other common problems in Linux environments: * Slow servers (including CPU, RAM, and disk I/O bottlenecks) * System boot failures * Full or corrupt disks * Down servers and websites * Failures in DNS server hostname resolution * Email delivery problems * Slow databases * Hardware faults

Kyle Rankin, a senior systems administrator, is president of the North Bay Linux Users’ Group and is an award-winning columnist for Linux Journal. Rankin speaks frequently on open source software at SCALE, OSCON, Linux World Expo, Penguicon, and many Linux user groups. His other books include The Official Ubuntu Server Book; Knoppix Hacks, Second Edition; Knoppix Pocket Reference;and Linux Multimedia Hacks. He is also coauthor of Ubuntu Hacks.

Preface

 

Chapter 1: Troubleshooting Best Practices

Chapter 2: Why is the Server so Slow? Running out of CPU, RAM, and Disk I/O

Chapter 3: Why Won't the System Boot? Solving Boot Problems

Chapter 4: I Can't Write to the Disk? Solving Full or Corrupt Disk Issues

Chapter 5: Is the Server Down? Tracking Down the Source of Network Problems

Chapter 6: Why Won’t the Hostnames Resolve? Solving DNS Server Issues

Chapter 7: Why Didn’t My Email Go Through? Tracing Email Problems

Chapter 8: Is the Website is Down? Tracking Down Web Server Problems

Chapter 9: Why is the Database Slow? Track Down Database Problems

Chapter 10: It's the Hardware's Fault! Diagnosing Common Hardware Problems

 

Index