Troubleshooting CentOS

Troubleshooting CentOS

<p><b>A practical guide to troubleshooting the CentOS 7 community-based enterprise server</b></p> <h2>About This Book</h2><ul><li>Gain exposure to insider tips and techniques to quickly detect the reason for poor network/storage performance</li><li>Troubleshooting methodologies, defining, and isolating problems</li><li>Identify key issues that impact performance, storage, scalability, capacity</li></ul><h2>Who This Book Is For</h2><p>It is assumed that you will already have a server up and running, you have a good working knowledge of CentOS, and you are comfortable with the concept of working with those services used by your server.</p><h2>What You Will Learn</h2><ul> <li>Consider the need to understand, manipulate, and make use of the relevant system log files</li> <li>Analyze, review, and make decisions regarding how and what to do with troublesome active processes on a CentOS server</li> <li>Discover how to approach issues regarding the network environment</li> <li>Approach issues regarding package management and learn how to make the necessary steps to diagnose and fix the problems found in relation to their YUM- and RPM-based needs</li> <li>Diagnose and troubleshoot issues related to Samba, NFS, and various external storage methods</li> <li>Diagnose and troubleshoot issues related to iptables, SELinux, some common firewalls, shell access, and SSH</li> </ul><h2>In Detail</h2><p>CentOS is the enterprise-grade Linux operating system built using the same source code as Red Hat Enterprise Linux (RHEL) to provide a free-to-use alternative to Red Hat's commercial Linux offering.</p><p>The purpose of this book is to build on your understanding of CentOS and to explore those mission-critical services you are entrusted to manage and maintain. Starting with a brief introduction to the overall subject of troubleshooting a CentOS server, this book will take you on a journey across the whole spectrum of issue-based problem solving, which includes active processes, the networking environment, package management, users, folders, files, shared resources, security, databases, and web-based services. By the end of the book, you will have expert-level competency in identifying and diagnosing the root causes of CentOS storage, network, and administration issues and resolving them.</p>