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CentOS 7 Linux Server Cookbook, Second Edition

You're reading from   CentOS 7 Linux Server Cookbook, Second Edition Get your CentOS server up and running with this collection of more than 80 recipes created for CentOS 7 - essential for Linux fans!

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Product type Paperback
Published in Jan 2016
Publisher
ISBN-13 9781785887284
Length 326 pages
Edition 2nd Edition
Tools
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Author (1):
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Jonathan Hobson Jonathan Hobson
Author Profile Icon Jonathan Hobson
Jonathan Hobson
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Table of Contents (17) Chapters Close

Preface 1. Installing CentOS FREE CHAPTER 2. Configuring the System 3. Managing the System 4. Managing Packages with YUM 5. Administering the Filesystem 6. Providing Security 7. Building a Network 8. Working with FTP 9. Working with Domains 10. Working with Databases 11. Providing Mail Services 12. Providing Web Services 13. Operating System-Level Virtualization 14. Working with SELinux 15. Monitoring IT Infrastructure Index

Synchronizing the system clock with NTP and the chrony suite

In this recipe, we will learn how to synchronize the system clock with an external time server using the Network Time Protocol (NTP) and the chrony suite. From the need to time-stamp documents, e-mails, and log files, to securing, running, and debugging a network, or to simply interact with shared devices and services, everything on your server is dependent on maintaining an accurate system clock, and it is the purpose of this recipe to show you how this can be achieved.

Getting ready

To complete this recipe, you will require a working installation of the CentOS 7 operating system with root privileges, a console-based text editor of your choice, and a connection to the Internet to facilitate downloading additional packages.

How to do it...

In this recipe, we will use the chrony service to manage our time synchronization. As chrony is not installed by default on CentOS minimal, we will start this recipe by installing it:

  1. To begin, log...
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