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

Open source monitoring tools


Monitoring tools can show real-time information about the system, service, and hardware status. Through this information, a system administrator can tell whether there is something acting weirdly or showing weakness. Then, they can act and try to resolve the issue before it gets worse.

This section presents the most common open source monitoring tools. A monitoring tool is usually chosen depending on what its main need is. Some monitoring tools are specialized in monitoring the characteristics of a set of machines. Others help store and generate a graph of the history to be used for future system analysis.

Many organizations rely on their monitoring tools to output, in order to not only maintain their system and prevent potential problems, but also to determine their system's rush hours and when the system is more idle status This helps them rather reinforce their system capacities and save power and resources.

Ganglia

We will start by talking about one of the most...