A practical guide to troubleshooting the CentOS 7 community-based enterprise server
About This Book
- Gain exposure to insider tips and techniques to quickly detect the reason for poor network/storage performance
- Troubleshooting methodologies, defining, and isolating problems
- Identify key issues that impact performance, storage, scalability, capacity
Who This Book Is For
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.
What You Will Learn
- Consider the need to understand, manipulate, and make use of the relevant system log files
- Analyze, review, and make decisions regarding how and what to do with troublesome active processes on a CentOS server
- Discover how to approach issues regarding the network environment
- 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
- Diagnose and troubleshoot issues related to Samba, NFS, and various external storage methods
- Diagnose and troubleshoot issues related to iptables, SELinux, some common firewalls, shell access, and SSH
In Detail
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.
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.
Jonathan Hobson
Jonathan Hobson is a professional Dev/Ops engineer who provides round-the-clock application and server support to one of the world's largest online newspapers. He has been using CentOS since its inception, and as the author of the best-selling CentOS 6 Linux Server Cookbook, Packt Publishing (ISBN-13: 978-1849519021), Jonathan maintains a strong reputation for the generation of ideas, problem solving, building business confidence, and finding innovative solutions in challenging environments. Jonathan has worked in a variety of environments, and with more than 20 years of experience as a professional developer, database administrator, and server engineer, he continues to support the open source community at large. Following a wide range of interests beyond the computer screen, Jonathan also enjoys walking his dogs and getting out and about in the great outdoors.
