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

Working with the RPM package manager


All software on a CentOS 7 system is distributed through RPM packages. Most of the time the YUM package manager is the first choice of any system administrator, performing software installation and maintenance, and is highly recommended whenever possible as it provides system integrity checks and has excellent package dependency resolution. In this recipe, we will show you an alternative way to manage your packages. We will be exploring the RPM package manager, which is a powerful tool used to build, install, query, verify, update, and erase individual RPM software packages. Though it is not as intelligent as YUM, as it cannot resolve package dependencies or work with repositories, it can be still relevant today since it provides very useful querying options that are not available in YUM, and it can be used to install single software packages manually.

Getting ready

To complete this recipe, you will require a working installation of the CentOS 7 operating...