Book Image

Mastering CentOS 7 Linux Server

By : Mohamed Alibi, BHASKARJYOTI ROY
Book Image

Mastering CentOS 7 Linux Server

By: Mohamed Alibi, BHASKARJYOTI ROY

Overview of this book

Most server infrastructures are equipped with at least one Linux server that provides many essential services, both for a user's demands and for the infrastructure itself. Setting up a sustainable Linux server is one of the most demanding tasks for a system administrator to perform. However, learning multiple, new technologies to meet all of their needs is time-consuming. CentOS 7 is the brand new version of the CentOS Linux system under the RPM (Red Hat) family. It is one of the most widely-used operating systems, being the choice of many organizations across the world. With the help of this book, you will explore the best practices and administration tools of CentOS 7 Linux server along with implementing some of the most common Linux services. We start by explaining the initial steps you need to carry out after installing CentOS 7 by briefly explaining the concepts related to users, groups, and right management, along with some basic system security measures. Next, you will be introduced to the most commonly used services and shown in detail how to implement and deploy them so they can be used by internal or external users. Soon enough, you will be shown how to monitor the server. We will then move on to master the virtualization and cloud computing techniques. Finally, the book wraps up by explaining configuration management and some security tweaks. All these topics and more are covered in this comprehensive guide, which briefly demonstrates the latest changes to all of the services and tools with the recent shift from CentOS 6 to CentOS 7.
Table of Contents (16 chapters)
Mastering CentOS 7 Linux Server
Credits
About the Authors
About the Reviewers
www.PacktPub.com
Preface
Index

Chapter 9. Some Additional Tricks and Tools

For daily Linux usage, most system administrators/users must master a few techniques to help them use their Linux machine to its full potential. It is like having a Swiss Army knife and using it to just cut vegetables. Linux hides many useful techniques for daily-life tasks, and CentOS 7 is one of the latest and most reliable OS that many users can use to solve tons of problems.

Through this chapter, we are going to show some of the most needed tools that we believe any system administrator should know how to use. We will be showing how to use these tricks and tools to better manage a CentOS 7 server infrastructure.

Within this chapter, we are going to present the following topics:

  • Connecting to multiple Linux machines using SSH

  • Securing SSH and root login configurations

  • SSH key-based authentication

  • Installation and configuration of SpamAssassin

  • Setting up the Clamav antivirus

  • Configuration of Mytop for a MySQL database

  • Setting up Samba and NFS for file...