Linux startup - Red Hat Certified Systems Administrator

Course details

Red Hat System Administration - RH124

RHCSA - Certified Red Hat Enterprise Linux System Administrator

Course Outline

Introduction

• Red Hat System Administration 1
• Installation of Red Hat Enterprise Linux 7

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

Getting Help in Red Hat Enterprise Linux

• 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

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.

• 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 & controlling 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 OpenSSH 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 Red Hat 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

• Attaching Systems to Subscriptions for Software Updates
• Practice: Red Hat Subscription Management
• RPM Software Packages and Yum
• Practice: RPM Software Packages
• Managing Software Updates with yum
• Practice: Installing and Updating Software with yum
• Enabling yum Software Repositories
• Practice: Enabling Software Repositories
• Examining RPM Package Files
• Practice: Working with RPM Package Files
• Lab: Installing and Updating Software Packages

Accessing Linux File Systems

• Accessing Linux File Systems
• Identifying File Systems and Devices
• Practice: Identifying File Systems and Devices
• Mounting and Unmounting File Systems
• Practice: Mounting and Unmounting File Systems
• Making Links Between Files
• Practice: Making Links Between Files
• Locating Files on the System
• Practice: Locating Files on the System
• Lab: Accessing Linux File Systems