Book Image

Red Hat Enterprise Linux Troubleshooting Guide

By : Benjamin Cane
Book Image

Red Hat Enterprise Linux Troubleshooting Guide

By: Benjamin Cane

Overview of this book

Red Hat Enterprise Linux is an operating system that allows you to modernize your infrastructure, boost efficiency through virtualization, and finally prepare your data center for an open, hybrid cloud IT architecture. It provides the stability to take on today's challenges and the flexibility to adapt to tomorrow's demands. In this book, you begin with simple troubleshooting best practices and get an overview of the Linux commands used for troubleshooting. The book will cover the troubleshooting methods for web applications and services such as Apache and MySQL. Then, you will learn to identify system performance bottlenecks and troubleshoot network issues; all while learning about vital troubleshooting steps such as understanding the problem statement, establishing a hypothesis, and understanding trial, error, and documentation. Next, the book will show you how to capture and analyze network traffic, use advanced system troubleshooting tools such as strace, tcpdump & dmesg, and discover common issues with system defaults. Finally, the book will take you through a detailed root cause analysis of an unexpected reboot where you will learn to recover a downed system.
Table of Contents (19 chapters)
Red Hat Enterprise Linux Troubleshooting Guide
Credits
About the Author
About the Reviewers
www.PacktPub.com
Preface
Index

Chapter 7. Filesystem Errors and Recovery

In Chapter 5, Network Troubleshooting, and Chapter 6, Diagnosing and Correcting Firewall Issues, we used quite a few tools to troubleshoot network connectivity issues due to misconfigured routes and firewalls. Network related issues are very common and the two example issues are also frequent scenarios. In this chapter, we will be focusing on hardware-related issues and start that with troubleshooting filesystem errors.

Much like the other chapters, we will start with a discovered error and troubleshoot the issue until we find the cause and solution. Along the way, we will discover many of the different commands and logs necessary for troubleshooting filesystem issues.