Book Image

CentOS 7 Linux Server Cookbook - Second Edition

By : Jonathan Hobson
Book Image

CentOS 7 Linux Server Cookbook - Second Edition

By: Jonathan Hobson

Overview of this book

This book will provide you with a comprehensive series of starting points that will give you direct access to the inner workings of the latest CentOS version 7 and help you trim the learning curve to master your server. You will begin with the installation and basic configuration of CentOS 7, followed by learning how to manage your system, services and software packages. You will then gain an understanding of how to administer the file system, secure access to your server and configure various resource sharing services such as file, printer and DHCP servers across your network. Further on, we cover advanced topics such as FTP services, building your own DNS server, running database servers, and providing mail and web services. Finally, you will get a deep understanding of SELinux and you will learn how to work with Docker operating-system virtualization and how to monitor your IT infrastructure with Nagios. By the end of this book, you will have a fair understanding of all the aspects of configuring, implementing and administering CentOS 7 Linux server and how to put it in control.
Table of Contents (22 chapters)
CentOS 7 Linux Server Cookbook Second Edition
Credits
About the Authors
About the Reviewer
www.PacktPub.com
Preface
Index

Extending the capacity of the filesystem


CentOS 7 uses the Logical Volume Manager (LVM) to organize the structure and available capacity of your partitions. It is a very dynamic and flexible system that can be extended or rearranged over time, and which is essential in today's most demanding and ever-changing environments. At the moment, buzzwords such as big data or cloud computing can be heard everywhere. Since massive amounts of data get produced all the time, storage requirements and disk space have to grow at the same steady pace. In this recipe, you will learn how to work with the LVM system and how to extend your physical drives, and also how to shrink and extend the capacity of your filesystems.

Getting ready

To complete this recipe, you will require a working installation of the CentOS 7 operating system with root privileges. We will use virtual block devices instead of real disk devices to show you from scratch how to set up a LVM first, and afterwards how to work with it. Please...