Book Image

Linux for System Administrators

By : Viorel Rudareanu, Daniil Baturin
Book Image

Linux for System Administrators

By: Viorel Rudareanu, Daniil Baturin

Overview of this book

Linux system administration is an essential aspect of maintaining and managing Linux servers within an organization. The role of a Linux system administrator is pivotal in ensuring the smooth functioning and security of these servers, making it a critical job function for any company that relies on Linux infrastructure. This book is a comprehensive guide designed to help you build a solid foundation in Linux system administration. It takes you from the fundamentals of Linux to more advanced topics, encompassing key areas such as Linux system installation, managing user accounts and filesystems, networking fundamentals, and Linux security techniques. Additionally, the book delves into the automation of applications and infrastructure using Chef, enabling you to streamline and optimize your operations. For both newcomers getting started with Linux and professionals looking to enhance their skills, this book is an invaluable hands-on guide with a structured approach and concise explanations that make it an effective resource for quickly acquiring and reinforcing Linux system administration skills. With the help of this Linux book, you’ll be able to navigate the world of Linux administration confidently to meet the demands of your role.
Table of Contents (21 chapters)
1
Part 1: Linux Basics
7
Part 2: Configuring and Modifying Linux Systems
13
Part 3: Linux as a Part of a Larger System

Checking rsyslog service on all servers

A high-performance log processing system called rsyslog is pre-installed and ready to use on both Debian and RHEL systems.

The syslog protocol has been improved with rsyslog, which gives it more contemporary and dependable features. These additional features include a large number of inputs and outputs, a modular design, and excellent filtering.

The most recent version of rsyslog as of this writing is v8.2112.0. Therefore, you will verify the rsyslog service’s status and the version of rsyslog installed on your computer. This will guarantee that rsyslog is running at its most recent version.

Open a command prompt and use the following sudo su command to take control of all servers. When prompted, enter your password.

In the following screenshot, you’ll find that Centos 8 ships with rsyslog v8.2102.0 by default:

Figure 11.1 – Checking the rsyslog version

Figure 11.1 – Checking the rsyslog version

Check the status of the rsyslog...