The Best-Selling CentOS eBooks of All Time

Become an efficient CentOS administrator by acquiring real-world knowledge of system setup and configurationAbout This BookCentralize user accounts in openLDAP and understand how Directory can be at the back-end of many servicesLearning Puppet to centralize server configuration will free up your time as configuration is handled just once on the configuration serverA step-by-step guide that covers the very popular Linux Distribution CentOS 6.5 with easy-to-follow instructions.

Who This Book Is ForIf you are a Linux administrator who is looking to gain knowledge that differentiates yourself from the crowd, then this is the book for you. Beginners who have a keen interest to learn more about Linux administration will also progress quickly with this resourceful learning guide. What You Will LearnConquer the command line using shortcuts in the shell and within the editor VimAnalyze the booting of CentOS utilizing MBR, GRUB, and PlymouthGain an understanding of the filesystem structure of hard links, inodes, and data using stat and lsManage your software installations with YUMHandle your services as they begin to migrate from System V scriptsEstablish centralized account information using openLDAP directory servicesCentralize the configuration management of CentOS using Puppet, enabling updates from Puppet Master to be distributed to the clientsIn DetailCentOS is widely respected as a very powerful and flexible Linux distribution, and it can be used as a web server, file server, FTP server, domain server, or a multirole solution. It is designed to handle the more demanding needs of business applications such as network and system administration, database management, and web services. CentOS is self-sufficient and fast while working, with the added benefit of global acceptance as a large number of the world's web servers run on it. This book not only concentrates on the basics, but also supplements your existing knowledge on subject areas that are important in the Enterprise market, such as directory services, security configuration management, and web-based architecture. By the end of this book, you will be able to manage an Enterprise Linux network focused on management-centralized configuration, user management, and filesystem enhancements by covering everything from the latest filesystem advances with BTRFS through to learning about the new web server on the block—Nginx.

Leverage the power of high availability clusters on CentOS Linux, the enterprise-class, open source operating system.

About This BookInstall, configure, and manage a multi-node cluster running on CentOS LinuxManage your cluster resources and learn how to start, stop, and migrate resources from one host to anotherDesigned as a step-by-step guide, this book will help you become a master of cluster nodes, cluster resources, and cluster services on CentOS 6 and CentOS 7Who This Book Is ForThis book is targeted at system engineers and system administrators who want to upgrade their knowledge and skills in high availability and want to learn practically how to achieve high availability with CentOS Linux. You are expected to have good CentOS Linux knowledge and basic networking experience. What You Will LearnPrepare the CentOS 6 and CentOS 7 operating systems for cluster software installationInstall, configure, and test cluster stacks on CentOS 6 (Corosync, CMAN, and RGManager) and CentOS 7 (Corosync and Pacemaker)Configure failover domains, cluster resources, cluster services, and cluster resource groupsStart, stop, add, and remove cluster nodes from a cluster on CentOS 6 and CentOS 7Place a cluster on standby mode to perform maintenance work on the cluster nodeConfigure fencing on CentOS 6 and STONITH on CentOS 7Successfully test cluster failoversIn DetailThe high performance and stability of CentOS Linux are the key factors that make CentOS Linux the right Linux distribution to build high availability solutions on. This book introduces you to high availability before briefly walking you through the cluster stack and its layers. The book is then divided into two parts, part A and part B, based on CentOS versions 6 and 7 respectively. Each part begins with the installation and configuration of the Corosync cluster messaging software with CMAN or with the Pacemaker cluster resource management software. You will also be introduced to cluster service configuration and cluster service management before you configure fencing or STONITH on CentOS 6 and CentOS 7. By the end of this book, you will have the skills required to independently design, implement, and maintain a CentOS high availability multinode cluster environment.

CentOS is just like Red Hat, but without the price tag and with the virtuous license. When belts have to be tightened, we want to read about an OS with all the features of a commercial Linux variety, but without the pain. The Definitive Guide to CentOS is the first definitive reference for CentOS and focuses on CentOS alone, the workhorse Linux distribution, that does the heavy lifting in small and medium-size enterprises without drawing too much attention to itself.

Provides tutorial and hands-on learning but is also designed to be used as a reference Bases all examples on real-world tasks that readers are likely to perform Serves up hard-won examples and hints and tips from the author's experiences of CentOS in production.