A practical guide to troubleshooting the CentOS 7 community-based enterprise server
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.
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
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