Description

1. Introduction to Shell Scripting
   1. Shell Script Strengths and Weaknesses
   2. Example Shell Script
   3. Positional Parameters
   4. Input & Output
   5. Doing Math
   6. Exit Status
   7. Comparisons with test
   8. Conditional Statements
   9. Flow Control: case
   10. The borne for-Loop
   11. The while and until Loops

   Lab Tasks

   1. Writing a Shell Script
2. Use regular expressions with grep
   1. Searching Inside Files
   2. Regular Expression Overview
   3. Regular Expression Implementations
   4. Regular Expressions
   5. RE Character Classes
   6. Regex Quantifiers
   7. RE Parenthesis

   Lab Tasks

   1. Pattern Matching with Regular Expressions
   2. Extended Regular Expressions
   3. Using Regular Expressions With sed
3. Schedule future Linux tasks
   1. Automating Tasks
   2. at/batch
   3. cron
   4. The crontab Command
   5. crontab Format
   6. /etc/cron.*/ Directories
   7. Anacron
   8. Systemd Timers

   Lab Tasks

   1. Creating and Managing User Cron Jobs
   2. Adding System cron Jobs
4. Manage priority of Linux processes
   1. Viewing Processes
   2. Managing Processes
   3. Tuning Process Scheduling

   Lab Tasks

   1. Process Management Basics
5. Control access to files with access control lists (ACL)
   1. File and Directory Permissions
   2. File Access Control Lists
   3. Manipulating FACLs
   4. Viewing FACLs
   5. Backing Up FACLs

   Lab Tasks

   1. Using Filesystem ACLs
6. Manage SELinux security
   1. SELinux Security Framework
   2. SELinux Modes
   3. SELinux Commands
   4. Choosing an SELinux Policy
   5. SELinux Booleans
   6. Permissive Domains
   7. SELinux Policy Tools
   8. SELinux Troubleshooting

   Lab Tasks

   1. Exploring SELinux Modes
   2. SELinux File Contexts
7. Connect to network-defined users and groups
   1. RHEL DS Client Configuration
   2. System Security Services Daemon (SSSD)

   Lab Tasks

   1. Using LDAP for Centralized User Accounts
8. Add disks, partitions, and file systems to a Linux system
   1. Partitioning Disks with fdisk & gdisk
   2. Resizing a GPT Partition with gdisk
   3. Partitioning Disks with parted
   4. Non-Interactive Disk Partitioning with sfdisk
   5. Filesystem Creation
   6. Filesystem Maintenance
   7. Managing an XFS Filesystem
   8. Swap

   Lab Tasks

   1. Creating and Managing Filesystems
   2. Hot Adding Swap
9. Manage logical volume management (LVM) storage
   1. Logical Volume Management
   2. Implementing LVM
   3. Creating Logical Volumes
   4. Activating LVM VGs
   5. Exporting and Importing a VG
   6. Examining LVM Components
   7. Changing LVM Components
   8. Advanced LVM Overview
   9. Advanced LVM: Components & Object Tags
   10. Advanced LVM: Automated Storage Tiering
   11. Advanced LVM: Thin Provisioning
   12. Advanced LVM: Striping & Mirroring
   13. Advanced LVM: RAID Volumes

   Lab Tasks

   1. Creating and Managing LVM Volumes
10. Access and manage network attached storage
    1. File Sharing via NFS
    2. NFSv4+
    3. NFS Clients
    4. NFS
    5. NFS Server Configuration
    6. Accessing Windows/Samba Shares from Linux
    7. AutoFS
    8. AutoFS Configuration

    Lab Tasks

    1. NFS Server Configuration
    2. Using autofs
11. Control and troubleshoot the Red Hat Enterprise Linux boot process
    1. Booting Linux on PCs
    2. GRUB 2
    3. GRUB 2 Configuration
    4. The Boot Loader Specification
    5. GRUB 2 Security
    6. Boot Parameters
    7. Initial RAM Filesystem
    8. System Boot Method Overview
    9. init
    10. systemd Targets
    11. Systemd local-fs.target and sysinit.target
    12. Systemd basic.target and multi-user.target
    13. System Configuration Files
    14. Shutdown and Reboot
    15. Linux Runlevels Aliases

    Lab Tasks

    1. Boot Process
    2. Booting directly to a bash shell
    3. GRUB Command Line
    4. Basic GRUB Security
    5. Troubleshooting Practice: Boot Process
12. Linux network communication with firewall
    1. Netfilter: Stateful Packet Filter Firewall
    2. Netfilter Concepts
    3. nftables
    4. NFT: Tables
    5. NFT: Chains
    6. NFT: Rules
    7. Netfilter Rule Syntax
    8. Rule Counters
    9. Targets
    10. FirewallD

    Lab Tasks

    1. Securing Services with Netfilter
    2. FirewallD
13. Container Technology Overview
    1. Container Fundamentals
    2. Daemonless Containers
    3. Podman
    4. Podman Configuration
    5. Podman Images
    6. Podman Volumes
    7. Podman Networking
    8. Rootless Podman
    9. Podman and Pods
    10. Building Images with Buildah
    11. Managing Images with Skopeo

    Lab Tasks

    1. Podman
    2. Podman Networking
    3. Podman and Pods
14. Installing RHEL
    1. Anaconda: An Overview
    2. Anaconda: Booting the System
    3. Anaconda: Common Boot Options
    4. Anaconda: Loading Anaconda and Packages
    5. Anaconda: Storage Options
    6. Anaconda: Troubleshooting
    7. Kickstart

    Lab Tasks

    1. Linux Installation
    2. Automating Installation with Kickstart
15. Comprehensive review
    1. System Administration II

    Lab Tasks

    1. Understand And Use Essential Tools
    2. Operate Running Systems
    3. Configure Local Storage and Filesystems
    4. Users, Groups, and File Permissions
    5. Maintenance and Recovery

Audience

1. Senior System Administrators: Advanced professionals responsible for managing and securing complex Linux environments.
2. DevOps Engineers: Engineers who integrate and automate processes within Linux systems, focusing on scalability and efficiency.
3. IT Security Specialists: Experts focused on enhancing the security posture of Linux systems, particularly through SELinux and other security measures.
4. Cloud Infrastructure Engineers: Professionals managing cloud-based Linux systems, ensuring robust and scalable infrastructure.
5. Network Engineers: Specialists responsible for configuring and maintaining Linux-based network services and storage solutions.

Prerequisites

Completion of or skills equal to the GL124 "Linux Systems Administration I" course.

Exam Information

The Red Hat Enterprise Linux (RHEL) system administration topics covered in this course along with the GL124 course cover the certification objects of the Red Hat Certified System Administrator (RHCSA) exam.