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

Tools to set up a logging server


Logging means collecting system and service output information. It can be simple information, a warning, or an error for telling the status of the concerned daemon. For a system administrator, the daily work load can be really heavy. Thus, they have always been adopting the best logging tools to monitor their infrastructure's behavior. Also, the relevant information should be readable and quickly understandable.

Many system administrators mainly use either of two open source solutions: Syslog-ng and Rsyslog.

Rsyslog

Rsyslog is a rocket-fast system for log processing. It offers high performance, great security, and a modular design. It has developed quickly and has evolved to be considered as a Swiss Army Knife in the logging field. It has a strong enterprise focus and also scales down to smaller systems. It supports MySQL, PostgreSQL, failover log destinations, syslog/tcp transport, fine-grained output format control, high-precision timestamps, queued operations...