This four-day instructor-led course is designed to provide students with the necessary skills and abilities to work as a professional Linux system administrator. The course covers how to administer, configure and upgrade Linux systems running one of the three major Linux distribution families: Red Hat, SUSE, Debian/Ubuntu, how to master the tools and concepts you’ll need to efficiently build and manage an enterprise Linux infrastructure. It also covers how to use state-of-the-art system administration techniques in real-life scenarios via practical labs. This course prepares the user for the Linux Foundation Certified System Administrator (LFCS) exam, which is also a required component of the MCSA: Linux

Aim

After completing this course, students will be able to:Perform essential Linux commands such as installation, searches and manipulating files.Operate running Linux systems by managing the boot process, scheduling jobs, updating the system, monitoring system performance and managing security.Manage users and groups by adding/deleting/modifying, configuring LDAP and PAM, modifying user processes and resources.Ensure network performance via configuration, monitoring, tunnelling and routing of traffic.Configure services such as DNS, shares, SSH and SELinux/AppArmor as well as servers for DHCP and HTTP.Manage system storage by using partitions, logical volumes, phsyical volumes, ACLs, quotas and clustering.

Recommended for

This course is intended for students with a basic knowledge of Linux and its most common utilities and text editors. For users with no prior experience we suggest the free ‘Introduction to Linux’ course available on edx.org

Prerequisites

Before attending this course, students must have:Knowledge of the basic components of Linux.Familiarity with text editors.Working knowledge of Bash scripting.

Syllabus

Module 1: System Startup and Shutdown

Understanding the Boot Sequence

The Grand Unified Boot Loader

GRUB Configuration Files

System Configuration Files in /etc

The init Process

SysVinit Startup

chkconfig and service

Upstart

systemd

Shutting down/Rebooting the System

Module 2: Linux Filetree System Layout

Data Distinctions

FHS Linux Standard Directory Tree

root (/) directory /bin /dev /etc /home /lib and /lib64 /media /mnt /opt /proc /sys /root /sbin /tmp /usr /var /run

Module 3: Kernel Services and Configuration

Kernel Overview

Kernel Configuration

sysctl

Kernel Modules

Module Utilities

Module Configuration

udev and Device Management

Module 4: Partitioning and Formatting Disks

Common Disk Types

Disk Geometry

Partitioning

Naming Disk Devices

Sizing up partitions

Partition table editors

Module 5: Linux Filesystems

Some Notes About Filesystems

Virtual Filesystem (VFS)

Filesystem Concepts

Disk and Filesystem Usage

Extended Attributes

ext4

XFS

btrfs

Creating and formatting filesystems

Checking and Repairing Filesystems

Mounting filesystems

Swap

Filesystem Quotas

Module 6: RAID and LVM

RAID

RAID Levels

Software RAID Configuration

Logical Volume Management (LVM)

Volumes and Volume Groups

Working with Logical Volumes

Resizing Logical Volumes

LVM Snapshots

Module 7: Processes

Programs and Processes

Process States

Execution Modes

Daemons

Creating Processes

Process Limits

Process Monitoring

Signals

niceness

Libraries

Module 8: Package Management Systems

Software Packaging Concepts

RPM (Red Hat Package Manager)

DPKG (Debian Package)

Revision Control Systems

Module 9: Package Installers

Package Installers

yum

zypper

APT

Module 10: User and Group Account Management

User Accounts

Management

Passwords

Restricted Shells and Accounts

The root Account

Group Management

PAM (Pluggable Authentication Modules)

Authentication Process

Configuring PAM

LDAP Authentication

File Permissions and Ownership

SSH

Module 11: Backup and Recovery Methods

Backup Basics

cpio

tar

Compression: gzip, bzip2 and xz and Backups

dd

rsync

dump and restore

mt

Backup Programs

Module 12: Networking

IP addresses

Hostnames

Network Interfaces

Routing

Name Resolution

Network Diagnostics

Module 13: Firewalls

Firewalls

Interfaces

firewalld

Zones

Source Management

Service and Port Management

Module 14: Local System Security

Local System Security

Creating a Security Policy

Updates and Security

Physical Security

Filesystem Security

Linux Security Modules

Module 15: Basic Troubleshoot and System Rescue

Troubleshooting Overview

Things to Check: Networking

Boot Process Failures

Filesystem Corruption and Recovery

Virtual Consoles

Rescue Media and Troubleshooting

System Rescue and Recovery