RH124 - Course Overview

Objective: To prepare for the RH124 Certification.
Public: Linux Technicians and Administrators.
Prerequisites: Have worked with Red Hat Enterprise Linux for at least 2 years.
Learning method: Alternating between a clear and precise teaching scenario and practical work based on concrete cases and examples.
Assessments: Assessments using self-correcting tests.

• RH124 - Course Overview
  • Presentation
  • Programme

• RH12401 - File Hierarchy System
  • Contents
  • LAB #1 - Linux File Hierarchy System
    • 1.1 - File Types
    • 1.2 - The mount command
    • 1.3 - The umount command
    • 1.4 - The /etc/fstab file
      • Mount Options
  • LAB #2 - Unix File System
    • 2.1 - Superblock
    • 2.2 - Inodes
    • 2.3 - Data blocks
    • 2.4 - Physical links
    • 2.5 - Symbolic links

• RH12402 - The VIsual Editor
  • Contents
  • Presentation
  • LAB #1 - Creating, Opening and Closing files with VI
    • 1.1 - Commands
    • 1.2 - Creating a new file with VI
    • 1.3 - Opening a file in read-only mode using view
    • 1.4 - Opening a file in read-write mode using VI
  • LAB #2 - The set Command
    • 2.1 - Commands
    • 2.2 - Turning on line numbering using set
  • LAB #3 - Moving around within the file
    • 3.1 - Commands
  • LAB #4 - Inserting Text
    • 4.1 - Commands
    • 4.2 - Inserting text
  • LAB #5 - Searching for Text
    • 5.1 - Commands
    • 5.2 - Searching for and replacing text
  • LAB #6 - Deleting Text
    • 6.1 - Commands
    • 6.2 - Deleting lines
  • LAB #7 - Copy, Cut and Paste
    • 7.1 - Commands
    • 7.2 - Copying, Cutting and pasting text
  • LAB #8 - Configuring a Personalised Interface

• RH12403 - Help and Documentation
  • LAB #1 - Help with Commands
    • 1.1 - Help on External Commands
    • 1.2 - Help on Built-In Commands
  • LAB #2 - The man command
    • 2.1 - The mandb and whatis commands
    • 2.2 - The apropos command
  • LAB #3 - The info command

• RH12404 - Basic Shell Commands and Text Manipulation Tools
  • LAB #1 - Use of Basic Shell Commands
    • 1.1 - The stty Command
    • 1.2 - The date command
    • 1.3 - The who Command
    • 1.4 - The df Command
    • 1.5 - The free Command
    • 1.6 - The whoami Command
    • 1.7 - The pwd Command
    • 1.8 - The cd Command
    • 1.9 - The ls Command
    • 1.10 - The lsof Command
    • 1.11 - The touch Command
    • 1.12 - The echo Command
    • 1.13 - The cp Command
    • 1.14 - The file Command
    • 1.15 - The cat Command
    • 1.16 - The mv Command
    • 1.17 - The mkdir Command
    • 1.18 - The rmdir Command
    • 1.19 - The rm Command
    • 1.20 - The sort Command
    • 1.21 - The more Command
    • 1.22 - The less Command
    • 1.23 - The find Command
    • 1.24 - The su Command
    • 1.25 - The updatedb and locate Commands
    • 1.26 - The whereis Command
    • 1.27 - The which Command
    • 1.28 - The uptime Command
    • 1.29 - The w Command
    • 1.30 - The uname Command
    • 1.31 - The du Command
    • 1.32 - The clear Command
    • 1.33 - The exit Command
    • 1.34 - The logout Command
    • 1.35 - The sleep Command
    • 1.36 - The wall Command
    • 1.37 - The seq Command
    • 1.38 - The screen Command
  • LAB #2 - Switches and Arguments
  • LAB #3 - Regular Expressions
    • BREs
    • EREs
  • Manipulating Text Files
    • Text-search Utilities
      • The grep Command
      • The egrep Command
      • The fgrep Command
      • LAB #4 - Using grep, egrep and fgrep
    • The Stream EDitor SED
      • LAB #5 - Using sed
    • The Text Processor AWK
      • Presentation
      • Field Separation
      • Conditions
        • A regular expression applied to a record
        • A regular expression applied to a field
        • Comparisons
        • Logical Operators
        • Built-in Variables
      • Awk Scripts
      • The printf function
      • Control Statements
        • if
        • for
        • while
        • do-while
      • LAB #3 - Using awk
  • LAB 7 - Other Useful Commands
    • 7.1 - The expand Command
    • 7.2 - La Commande unexpand
    • 7.3 - The cut command
    • 7.4 - The uniq Command
    • 7.5 - The tr Command
    • 7.6 - The paste Command
    • 7.7 - The split Command
    • 7.8 - The diff Command
    • 7.9 - The cmp Command
    • 7.10 - The patch Command
    • 7.11 - The strings Command
    • 7.12 - The comm Command
    • 7.13 - The head Command
    • 7.14 - The tail Command
  • LAB #8 - Use the grep, tr and cut commands to extract your IPv4 address from the output of ifconfig
  • LAB #9 - Use the grep, awk and sed commands to extract your IPv4 address from the output of ip

• RH12405 - The Command Line
  • The Shell
  • LAB #1 - The /bin/bash Shell
    • 1.1 - Shell Internal and External Commands
    • 1.2 - Aliases
    • 1.3 - Defining a user's shell
    • 1.4 - The Prompt
    • 1.5 - Recalling commands
    • 1.6 - Generating file name endings
    • 1.7 - The interactive shell
      • Character *
      • Character ?
      • Character [ ]
    • 1.8 - The extglob option
      • ?(expression)
      • *(expression)
      • +(expression)
      • @(expression)
      • !(expression)
      • Escape characters
  • 1.9 - Return Codes
  • 1.10 - Redirections
  • 1.11 - Pipes
  • 1.12 - Command substitution
  • 1.13 - Command chaining
  • 1.14 - Displaying shell variables
    • Main variables
    • Internationalization and Localization Variables
    • Special variables
  • 1.15 - The env command
  • 1.16 - Bash Shell options
    • Examples
      • noclobber
      • noglob
      • nounset

• RH12406 - User Management
  • Overview
    • /etc/nsswitch.conf
    • Querying databases
    • The /etc/group and /etc/gshadow files
    • The /etc/passwd and /etc/shadow files
  • Commands
    • Groups
      • groupadd
      • groupdel
      • groupmod
      • newgrp
      • gpasswd
    • Users
      • useradd
      • userdel
      • usermod
      • passwd
      • chage
  • Configuration
  • LAB #1 - Managing Users and Groups
  • LAB #2 - Forcing complex passwords with PAM
    • Using Complex Passwords
    • Configuration
  • su and su -
  • sudo

• RH12407 - Package Management
  • LAB #1 - The rpm command
    • 1.1 - Configuration
    • 1.2 - Using the rpm command
  • LAB #2 - The dnf command
    • 2.1 - Overview
    • 2.2 - Configuration
    • 2.3 - Repositories
    • 2.4 - Searching for Packages
    • 2.5 - Getting Package Information and Downloading Packages
    • 2.6 - Installing a package
    • 2.7 - Updating Packages
    • 2.8 - Deleting packages
    • 2.9 - The dnf history
    • 2.10 - The Application Stream Repository
  • LAB #3 - Shared Libraries
    • 3.1 - Introduction
      • Storage
      • ld-linux.so.2
    • 3.2 - The ldd command
    • 3.3 - The /etc/ld.so.conf file
    • 3.4 - The ldconfig command

• RH12408 - Managing File Permissions
  • Presentation
  • Preparation
  • LAB #1 - Simple Unix File Permissions
    • 1.1 - Changing File Permissions
      • The chmod Command
        • Symbolic Mode
        • Octal mode
      • The umask command
    • 1.2 - Changing the owner or group
      • The chown command
      • The chgrp command
  • LAB #2 - Extended Unix File Permissions
    • 2.1 - SUID/SGID bit
    • 2.2 - Inheritance Flag
    • 2.3 - Sticky bit

• RH12409 - Archiving and Compression
  • Types of Backup
    • Full Backup
    • Differential Backup
    • Incremental Backup
    • Decremental Backup
  • Classic Backup Tools
    • Preparation
    • The Tar Command
      • Overview
      • LAB #1 - Working with the tar command
      • The GPL tar command and compression
    • The cpio command
      • Overview
      • LAB #2 - Working with the cpio command
    • The dd command
      • Overview
      • LAB #3 - Working with the dd command
    • The dump and restore commands
      • Overview
  • Advanced Backup Tools
    • Unidirectional Backup Tools
    • Multidirectional Backup Tools
    • Partition Backup Tools
  • LAB #4 - What to Backup First
    • Package List Backup
    • Backing up the System Hard Disk Structure
    • Backing up the System Hard Disk Mounting Points
    • Boot Loader Backup
      • GRUB Legacy
      • GRUB 2 with BIOS
      • GRUB 2 with EFI
    • User Directories Backups
  • The Rsync Command
    • Overview
    • LAB #5 - Working with the rsync command
  • Compression
    • The gzip command
      • Overview
      • LAB #6 - Working with the gzip command
    • The bzip2 command
      • Overview
      • LAB #7 - Working with the bzip2 command
    • The xz command
      • Overview
      • LAB #8 - Working with the xz command
    • Other utilities

• RH12410 - Process Management
  • Overview
  • Process Types
  • Lab #1 - Process commands
    • 1.1 - The ps command
    • 1.2 - The pgrep command
    • 1.3 - The pstree command
    • 1.4 - The top command
    • 1.5 - The fg, bg and jobs commands
    • 1.6 - The wait command
    • 1.7 - The nice command
    • 1.8 - The renice command
    • 1.9 - The nohup command
    • 1.10 - The kill command
    • 1.11 - The pkill command

• RH12411 - Managing Logs
  • Overview
  • The dmesg Command
  • LAB #1 - Security Monitoring
    • 1.1 - The last Command
    • 1.2 - The lastlog Command
    • 1.3 - The lastb Command
    • 1.4 - The /var/log/secure File
    • 1.5 - Audit Event Management
      • The /var/log/audit/audit.log File
      • auditd
      • auditctl
      • audispd
      • Viewing audit Events
        • The aureport Command
        • The ausearch Command
  • The /var/log/messages File
  • Applications
  • LAB #2 - rsyslog
    • 2.1 - Priorities
    • 2.2 - Facilities
    • 2.3 - /etc/rsyslog.conf
      • Modules
      • Global Directives
      • Rules
        • Facility.Priority
        • Facility!Priority
        • Facility=Priority
        • Using the * Wildcard
        • n Facilities with Identical Priorities
        • n Selectors with Identical Actions
  • LAB #3 - The logger Command
  • LAB #4 - The logrotate Command
  • LAB #5 - Logging with journald
    • 5.1 - Viewing Logs
    • 5.2 - Application Specific Messages
    • 5.3 - Boot Messages
    • 5.4 - Priority Specific Messages
    • 5.5 - Messages from a Specific Date or Time Range
    • 5.6 - Real Time Messages
    • 5.7 - Searching with Key Words
  • LAB #6 - The NTP Server
    • 6.1 - Overrview
    • 6.2 - The chronyd Service
    • 6.2 - The /etc/chrony.conf File

• RH12412 - Service and Daemon Management
  • Systemd
    • LAB #1 - The systemctl command
    • LAB #2 - Configuration Files
      • 2.1 - Default Configuration Files
      • 2.2 - Overriding the Default Configuration Files
    • LAB #3 - The systemd-analyze command
    • LAB #4 - Systemd Targets
      • 4.1 - Checking target dependencies
      • 4.2 - The Default Target
    • LAB #5 - Managing Services
      • 5.1 - Managing Single Instances
      • 5.2 - Managing Multiple Instances
      • 5.3 - Prohibiting Service Status Changes

• RH12413 - Network Management
  • Understanding IPv4
    • TCP headers
    • UDP Headers
    • Fragmentation and Re-encapsulation
    • Addressing
    • Subnet Masks
    • VLSM
    • Ports and Sockets
    • The /etc/services File
    • Ethernet Address Resolution
  • Understanding IPv6
    • Overview
    • IPv6 addresses
    • Subnet Masks
    • IPv6 Reserved Addresses
    • Link-local Addresses
    • DHCPv6
  • Configuring the Network
    • The nmcli Command
  • LAB #1 - Network Configuration
    • 1.1 - Connections and Profiles
    • 1.2 - Name Resolution
    • 1.3 - Adding a Second IP Address to a Profile
    • 1.4 - The hostname Command
    • 1.5 - The ip Command
    • 1.6 - Manually Enabling/Disabling an Interface
    • 1.7 - Static Routing
      • The ip Command
      • Enable Routing on the Server
  • LAB #2 - Network diagnostics
    • 2.1 - ping
    • 2.2 - netstat -i
    • 2.3 - traceroute
    • 2.4 - tracepath
  • LAB #3 - Remote Connections
    • 3.1 - Telnet
    • 3.2 - wget
    • 3.3 - ftp
    • 3.4 - SSH
      • Overview
        • SSH-1
        • SSH-2
      • Password Authentication
      • Asymmetric key Authentication
      • Server Configuration
      • Client Configuration
      • SSH Tunnels
    • 3.5 - SCP
      • Overview
      • Usage
    • 3.6 - Setting up Asymmetric Keys

Copyright © 2024 Hugh Norris.