SUSE Linux Enterprise Server 16 Official Administration Guide : Master SLES 16 System Administration, Security, and Automation for the SCA Exam.

Format:

Book

Author/Creator:

Colino, Miguel Pérez.

Language:

English

Subjects (All):

Linux.

Client/server computing--Management.

Client/server computing.

Operating systems (Computers).

Physical Description:

1 online resource (576 pages)

Edition:

1st ed.

Place of Publication:

Birmingham : Packt Publishing, Limited, 2026.

Summary:

The official SUSE Linux guide to mastering Linux administration.Deploy, secure, and manage SLES 16 servers while preparing for the SCA certification Key Features Build real-world SLES 16 sysadmin skills through hands-on tasks and examples Secure and optimize enterprise Linux systems using mcphost, cockpit, firewalld, SELinux, and system roles.

Contents:

Cover

Title Page

Copyright and Credits

Dedication

Foreword

Contributors

Table of Contents

Preface

Free Benefits with Your Book

Part 1: System Administration: Software, User, Network, and Service Management

Chapter 1: Getting SLES 16 Up and Running (Physical and Cloud)

Technical requirements

Obtaining the SLES software and a subscription

Installing SLES 16

Preparation for a physical server installation

Booting an SLES installation from a USB thumb drive

Preparation for a virtual server installation

Running the SLES installation

Installation type

Installer introduction and overview

Hostname

Registration

Localization

Network

Storage

Software

Authentication

Running SLES on the cloud

Installation best practices

Summary

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Chapter 2: Running Basic Commands and Simple Shell Scripts

Logging in using a password

The root account

Understanding the command prompt

Changing users with the su command

Understanding users, groups, and basic permissions

Users

Groups

Navigating the filesystem

File permissions

Using the command line, environment variables, and navigating through the filesystem

Command line and environment variables

Bash autocomplete

Recovering previous commands

Filesystem hierarchy

Understanding I/O redirection in the command line

Filtering output with grep and sed

Listing, creating, copying, and moving files and directories, links, and hard links

Directories

Copying and moving

Symbolic and hard links

Using tar and gzip

Creating basic shell scripts

Loops with for

Conditionals with if

Exit codes

Using system documentation resources

Man pages

Info pages

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Chapter 3: Managing Regular Operations with Tools

Managing system services with systemd

The systemd unit file structure

Managing services to be started and stopped at boot

Managing boot targets

Scheduling tasks with systemd timers

Systemd timers

Learning about time synchronization with chrony

The chrony NTP client

The chrony NTP server

Checking system resources: memory and disk (free, df, and ps)

Memory

Disk space

CPU

Load average

Other monitoring tools

Finding logs, using journald, and reading log files, including log preservation and rotation

Log rotation

Chapter 4: Securing the System with Users, Groups, and Permissions

Creating, modifying, and deleting local user accounts and groups

Managing groups and reviewing assignments

Adjusting password policies

Configuring and using sudo access for administrative tasks

Understanding sudo configuration

Using sudo to run admin commands

Configuring sudoers

Checking, reviewing, and modifying file permissions

Using special permissions

Understanding and applying set-UID

Understanding and applying set-GID

Using the sticky bit

Chapter 5: Enabling Network Connectivity

Exploring network configuration in SLES

Getting to know the configuration files and NetworkManager

Configuring network interfaces with IPv4 and IPv6

IPv4 and IPv6... What does that mean?

Configuring interfaces with nmtui

Configuring interfaces with nmcli

Configuring interfaces with text files

Configuring the hostname and hostname resolutions (DNS)

Overview of firewall configuration

Configuring the firewall

Testing network connectivity

Summary.

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Chapter 6: Adding, Patching, and Managing Software

Some useful concepts about package management

SCC and subscriptions

Registering an installed system

Installing and updating software using Zypper

Managing repositories and signatures with Zypper

Installing patterns

Updating software

Uninstalling software and repositories

Understanding RPM internals

Part 2: Security with SSH, SELinux, Firewall, and System Permissions

Chapter 7: Administering Systems Remotely

SSH and OpenSSH overview and base configuration

OpenSSH server

OpenSSH client

Accessing remote systems with SSH

Key-based authentication with SSH

SSH agent

SCP/rsync - Remote file management

Transferring files with an OpenSSH secure file copy (scp)

Transferring files with sftp

Transferring files with rsync

Advanced remote management - SSH tunnels and SSH redirections

Remote terminals with tmux

Chapter 8: Enabling and Using Cockpit

Installing and enabling Cockpit on your system

Basic Cockpit usage

Accessing Cockpit

Logging in and enabling administrative tasks

Metrics and history

Hardware information and logs

Storage, network configuration, and firewall

General networking

Firewall management

Network interface management

Accounts and services

Accounts

Services

Other tools

Applications

Repositories

SELinux

Software updates

Subscriptions

Terminal

Chapter 9: Securing Network Connectivity with firewalld

Technical requirements.

Introduction to firewalld

Installing firewalld

Configuring firewalld

Zones

Ports

Enabling firewalld in the system and reviewing the default zones

Reviewing the different configuration items under firewalld

Enabling and managing services and ports

Creating and using service definitions for firewalld

Chapter 10: Keeping the System Hardened with SELinux

SELinux usage in enforcing and permissive modes

Reviewing SELinux context for files and processes

The targeted policy

Tweaking the policy with semanage

Restoring changed file contexts to the default policy

Using SELinux Boolean settings to enable services

SELinux troubleshooting and common fixes

Part 3: Implementing Agentic AI with mcphost

Chapter 11: Agentic AI with mcphost

Understanding agentic AI and MCP

Installing and configuring mcphost

Using mcphost

Part 4: Resource Administration: Storage, Boot Process, Tuning, and Containers

Chapter 12: Managing Local Storage and Filesystems

A bit of history on disks and partitions

Partitioning disks (MBR and GPT disks)

Formatting and mounting filesystems

Setting default mounts and options in fstab

Using network filesystems with NFS

Chapter 13: Flexible Storage Management with LVM

Understanding LVM

Creating, moving, and removing physical volumes

Combining physical volumes into volume groups

Creating and extending logical volumes

Adding new disks to a volume group and extending a logical volume

Removing logical volumes, volume groups, and physical volumes.

Reviewing LVM commands

Chapter 14: Configuring and Using System Snapshots with BTRFS and Snapper

BTRFS' and Snapper's origins

Reviewing BTRFS basics, creating filesystems, reviewing status, and mounting

BTRFS snapshots, how they work, and how to use them

Snapper, the snapshot management tool

Using Snapper to show changes made to files between snapshots

Using Snapper to roll back to a previous configuration status

Other Snapper functions

Chapter 15: Understanding the Boot Process

Understanding the boot process - UEFI booting and legacy BIOS

Working with GRUB, the bootloader, and initrd system images

Managing the boot sequence with systemd

Updating the root password by modifying the boot process

Chapter 16: Automating with System Roles

What are system roles?

Installing system roles

Using system roles

Chapter 17: Managing Containers with Podman

What to expect from containers

Installing Podman

Working with registries

Using registries

Connecting to a running container

Deleting containers and images

Chapter 18: Introduction to SLES for SAP Applications

SLES for SAP Applications

Long-term support

Workload Memory Protection

SUSE Linux Enterprise Live Patching

Trento

Tuning SLES for SAP

Converting a SLES system to SLES for SAP Applications

Part 5: Practice Exercises.

Chapter 19: Practice Exercises - 1.

Notes:

Description based on publisher supplied metadata and other sources.

ISBN:

1-80602-158-7

9781806021581

OCLC:

1565283184

Publisher Number:

CIPO000315636