Linux Certified System Admin – SA1 (RHEL7)

Course Description:

Linux Certified System Admin – SA1 based on OS 7

Course Outline

Introduction

• Linux System Administration 1

• Installation of Linux Enterprise Linux 7 using vmware workstation

Understanding the Command Line

• Accessing the command line using the Local & remote Console

• Lab Session on  Local Console Access

• Access & view the Command Line Using the Desktop

• Lab Session on the GNOME 3 Desktop Environment

• Executing & Implementing Commands Using the Bash Shell

• Lab: Accessing the Command Line

Operate Files & Directories  From the Command Line

• Overview of the Linux File System Hierarchy

• Locating Files by Name

• Lab : Locating Files and Directories

• Command-Line Tools

• Matching File Names Using Path Name

• Lab: Managing Files with Shell Expansion

Various useful command to get help in RHEL

• man Command

• Lab: Using the man Command

• Reading Documentation Using pinfo Command

• Lab: Using the pinto Command

• Reading Documentation in /usr/share/doc

• Practice: Viewing Package Documentation

• Getting Help From RedHat

• Lab session on Creating and Viewing an SoS Report

Viewing, Creating & and Editing Text Files

• Redirecting Output to a File or Program

• I/0 Redirection

• Editing Text Files 

• Lab on Editing & viewing file with Vim

• Editing Text Files with a Graphical Editor

• Lab Copying Text Between Windows

• Lab: Creating, Viewing, and Editing Text Files

User Management

• Understanding different types of groups and creation of groups

• Creation of users in different groups

• Understanding Passwd, Shadow Files

• Understanding passwd aging

• Creation of quotas for users, groups and file systems

• Understanding users security files

• password aging policy using chage commands

• TROUBLESHOOTING

Permissions in Linux 

• Linux File System Permissions

• User based Permissions group

• Permission types

• Practice: Managing File Security from the Command Line

• Managing Default Permissions and File Access

• Practice: Controlling New File Permissions and Ownership

• Special permissions like Setuid, setguid & Sticky bit etc

• Two Labs to demonstrate the permissions from real IT industry environment.

Linux Processes

• Processes

• Lab Session on Processes Management

• Controlling Jobs

• Lab: Background and Foreground Processes

• Killing Processes

• Practice: Killing Processes

• Monitoring Process Activity

• Practice: Monitoring Process Activity

• Lab: Monitoring and Managing Linux Processes

Managing Services and Daemons

• Controlling Services and Daemons

• Identifying Automatically Started System Processes

• Lab session on Identify the Status of systemd Units

• Controlling System Services

• Lab session on using systemctl to Manage & Controlling Services & Daemons

Configuring and Securing SSH Service  

• Accessing the Remote Command Line with SSH

• Practice: Accessing the Remote Command Line

• Configuring SSH Key-based Authentication

• Practice: Using SSH Key-based Authentication

• Customizing SSH Service Configuration

• Practice: Restricting SSH Logins

• Lab: Configuring and Securing OpenSSH Service

Analyzing Logs

• System Log Architecture – System Logging

• Lab to understand System Logging Components

• Overview of System log  Files

• Finding Log Entries

• Reviewing systemd Journal Entries

• Lab Finding Events With journalctl

• Maintaining Accurate Time

• Practice: Adjusting System Time

• Lab: Analyzing and Storing Logs

Managing Linux Enterprise Linux Networking

• Networking Concepts

• Practice: Networking Concepts

• Validating Network Configuration

• Practice: Examining Network Configuration

• Configuring Networking with nmcli

• Practice: Configuring Networking with nmcli

• Editing Network Configuration Files

• Practice: Editing Network Configuration Files

• Configuring Host Names and Name Resolution

• Practice: Configuring Host Names and Name Resolution

• Lab: Managing Red Hat Enterprise Linux Networking

Archiving and Copying Files Between Systems

• Managing Compressed tar Archives

• Practice: Backing Up and Restoring Files From a tar Archive

• Copying Files Between Systems Securely

• Practice: Copying Files Over the Network With scp

• Synchronizing Files Between Systems Securely

• Practice: Synchronizing Two Directories Securely With rsync

• Lab: Archiving and Copying Files Between Systems

Installing and Updating Software Packages

• How to attach Systems to Subscriptions for Software Updates

• RPM Software Packages and Yum

• Managing Software Updates with yum

• Practice: Installing and Updating Software with yum

• Enabling yum Software Repositories

• Practice: Enabling Software Repositories & working with RPM files

Linux File Systems

•     Overview about Linux File Systems

•     Identify File Systems and Devices

•     Practice Lab Session

•     Mounting and Unmounting File Systems

•     Making Soft & Hard Links Between Files

•     Locating Files on the System

•     Practice: Locating Files on the System

•     Various Practice Lab Session