LCE500 - Course Presentation

• LCE500 - Course Presentation
  • Contents
  • Prerequisites
  • Training Program

• A computer running either MacOS, Linux, Windows™ or Solaris™,
• QWERTY US Keyboard,
• 4 GB of RAM,
• Headphones,
• A mic (optional).

• Web Chrome version 72+ or
• Microsoft Edge version 79+ or
• Firefox version 65+.

• A fast, direct (no proxy or VPN), Internet connection (4G minimum),
• Access to : https://itraining.network and subdomains thereof.
• Accessible ports : 80, 443.

• LCE500 - CentOS 8 Linux (RHEL 8 / Oracle Linux 8) - System Administrator
  • Prerequisites
  • Training Program

• LCE501 - Managing Users and Groups
  • Presentation
    • /etc/nsswitch.conf
    • The getent Command
    • 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 - su and su -
  • sudo

• LCE502 - Package Management
  • LAB #1 - Compiling Software
    • 1.1 - ./configure
    • 1.2 - make
    • 1.3 - make check
    • 1.4 - make install
  • LAB #2 - The rpm Command
    • 2.1 - Configuration
    • 2.2 - Usage
  • LAB #3 - The dnf Command
    • 3.1 - Presentation
    • 3.2 - Configuration
    • 3.3 - Repositories
    • 3.4 - Searching for Packages
    • 3.5 - Viewing Information on and Downloading a Package
    • 3.6 - Installing a Package
    • 3.7 - Updating Packages
    • 3.8 - Deleting Packages
  • Shared Libraries
    • Presentation
      • Introduction
      • Shared Object Locations
      • ld-linux.so.2
    • The ldd Command
    • The /etc/ld.so.conf File
    • The ldconfig Command

• LCE503 - Managing File Permissions
  • Presentation
  • Preparation
  • LAB #1 - Basic Unix File Permissions
    • 1.1 - Changing Permissions with chmod
      • Symbolic Mode
      • Octal Mode
      • The umask Command
    • 1.2 - Changing the Owner or the Group with chown and chgrp
      • The chown Command
      • The chgrp Command
  • LAB #2 - Advanced Unix Permissions
    • 2.1 - SUID/SGID bit
    • 2.2 - Inheritance Flag
    • 2.3 - Sticky bit
  • LAB #3 - Extending Linux Permissions using ACLs and Attributes
    • 3.1 - ACLs
    • 3.2 - Attributes

• LCE504 - Managing Disks and Filesystems
  • Peripherals
  • Partitions
  • Partitioning
    • LAB #1 - Partioning your Disk with the fdisk Command
    • LAB #2 - Modifier les Drapeaux des Partitions avec fdisk
  • Logical Volume Manager (LVM)
    • LAB #3 - Linear Logical Volumes
      • Physical Volumes (PV)
      • Volume Groups (VG) and Physical Extents (PE)
      • Logical Volumes (LV)
    • LAB #4 - Grow a Volume
    • LAB #5 - Snapshots
    • LAB #6 - Deleting Volumes
    • LAB #7 - Mirrored Volumes
    • LAB #8 - Changing LVM Attributes
    • LAB #9 - Striped Volumes
    • LAB #10 - Managing Meta-data
  • Journaled Filesystems
    • Ext3
      • Managing Ext3
      • LAB #11 - Converting Ext3 to Ext2
      • LAB #12 - Converting Ext2 to Ext3
      • LAB #13 - Using another PArtition for the Journal
      • LAB #14 - Changing the File System Check interval on an ext3 Filesystem
    • Ext4
      • LAB #15 - Creating an Ext4 Filesystem
      • LAB #16 - Adding a Label to an Ext4 Filesystem
      • LAB #17 - Converting Ext3 to Ext4
    • XFS
      • LAB #18 - Creating an XFS Filesystem
      • LAB #19 - Adding a Label to an XFS Filesystem

• LCE505 - Process Scheduling
  • cron
    • The /etc/crontab file
    • Time Fields
    • User Crontabs
  • anacron
  • at

• LCE506 - Archiving and Compression
  • Traditional Backup Tools
    • Preparation
    • The tar Command
      • Presentation
      • LAB #1 - Working with the tar Command
      • The GPL tar Commande and Compression
    • The cpio Command
      • Presentation
      • LAB #2 - Working with the cpio Command
    • The dd Command
      • Presentation
      • LAB #3 - Working with the dd Command
    • The dump et restore Commands
      • Presentation
    • LAB #4 - System Backups
      • Backing up the Installed Package List
      • Backing up the Disk Structure
      • Backing up Mount Points
      • Backing up the Boot Loader
        • GRUB Legacy
        • GRUB 2 on BIOS
        • GRUB 2 on EFI
      • Backing up User Files
    • Rsync
      • Presentation
      • LAB #5 - Working with the rsync Command
  • Compression
    • The gzip Command
      • Presentation
      • LAB #4 - Working with the gzip Command
    • The bzip2 Command
      • Presentation
      • LAB #5 - Working with the bzip2 Command
    • The xz Command
      • Presentation
      • LAB #6 - Working with the xz Command
    • Other Compression Utilities

• LCE507 - Process Management
  • Presentation
  • Process Types
  • Process Commands
    • The ps Command
    • The pgrep Command
    • The pstree Command
    • The top Command
    • The fg, bg and jobs Commands
    • The wait Command
    • The nice Command
    • The renice Command
    • The nohup Command
    • The kill Command
    • The pkill Command

• LCE508 - Managing Logs
  • Presentation
  • The dmesg Command
  • Security Logging
    • The last Command
    • The lastlog Command
    • The lastb Command
    • The /var/log/secure File
  • The /var/log/audit/audit.log File
    • Managing Audit Events
      • auditd
      • auditctl
    • Viewing Audit Events
      • The aureport Command
      • The ausearch Command
  • The /var/log/messages File
  • Applications
  • rsyslog
    • Priorities
    • Facilitiess
    • The /etc/rsyslog.conf File
      • Modules
      • Global Directives
      • Rules
        • Facility.Priority
        • Facility!Priority
        • Facility=Priority
        • Using the * Wildcard
        • n Facilities with Identical Priorities
        • n Selectors with Identical Actions
  • The logger Command
  • The logrotate Command
  • journald
    • Using Journald
      • Application Specific Messages
      • Boot Messages
      • Priority Specific Messages
      • Messages from a Specific Date Range
      • Real Time Messages
      • Searching with Key Words

• LCE509 - Printer Management
  • Cups
    • Protocols
    • Packages
    • Daemon
    • The /etc/cups/cupsd.conf File
    • Filters
    • Backends
    • Logs
    • Printers
    • Administration
      • The lpstat Command
      • The lpadmin Command
      • The accept et cupsenable Commands
      • Classes
      • The /etc/cups/printers.conf File
      • The /etc/cups/classes.conf File
      • The cancel Command
      • The lpmove Command
      • Web Interface

• LCE510 - System Startup and Shutdown
  • System Startup
    • Boot Loader
      • BIOS Systems
      • EFI Systems
      • GRUB 2
        • The /boot/grub/grub.cfg File
        • The /etc/default/grub file
        • Files in the /etc/grub.d directory
    • Initramfs
      • The init Script
    • Kernel Booting Process
  • Systemd
    • LAB #1 - The systemctl Command
    • LAB #2 - Configuration Files
      • 2.1 - Default Configuration Files
      • 2.1 - Overloading Default Configuration Files
    • LAB #3 - The systemd-analyze Command
    • LAB #4 - Targets
      • 4.1 - Checking the Target Dependencies
      • 4.2 - The Default Target
        • Checking the Default Target
        • Changing the Default Target
        • Changing the Default Target for the Current Session
    • LAB #5 - Managing Services
      • 5.1 - Single Service Instances
      • 5.2 - Multiple Instance Services
      • 5.3 - Disallowing Modifications to a Service Status
  • LAB #6 - System Shutdown
    • 6.1 - The shutdown Command
    • 6.2 - The reboot Command
    • 6.3 - The halt Command
    • 6.4 - The poweroff Command

• LCE601 - Managing Integrated Peripherals
  • Special Files
  • LAB #1 - Commands
    • 1.1 - The lspci Command
    • 1.2 - The lsusb Command
    • 1.3 - The dmidecode Command
  • LAB #2 - The sysctl Command
    • 2.1 - The /proc Directory
      • Files
        • /proc/cpuinfo
        • /proc/interrupts
        • /proc/dma
        • /proc/ioports
        • /proc/devices
        • /proc/module
        • /proc/diskstats
        • /proc/partitions
        • /proc/swaps
        • /proc/loadavg
        • /proc/meminfo
        • /proc/version
      • Directories
        • ide/scsi
        • acpi
        • bus
        • net
        • sys
    • 2.2 - Using the sysctl Command
  • LAB #3 - Interpreting Information in /proc
    • 3.1 - free
    • 3.2 - uptime ou w
    • 3.3 - iostat
    • 3.4 - hdparm
    • 3.5 - vmstat
    • 3.6 - mpstat
    • 3.7 - sar
  • USB Modules
  • udev
    • The udevadm Command
  • The /sys Filesystem
  • LAB #4 - Limiting Ressources
    • 4.1 - ulimit
    • 4.2 - CGroups
      • Limiting Memeory Usage
      • The cgcreate Command
      • The cgdelete Command
      • The /etc/cgconfig.conf File
      • The cgconfigparser Command

• LCE602 - Compiling the Kernel and Managing Quotas
  • The Linux Kernel
  • LAB #1 - Modules
  • LAB #2 - Compiling and Installing a Kernel and Modules
    • 2.1 - Move /home
    • 2.2 - Preparing the Environment
    • 2.3 - Preparing the Kernel Source Tree
      • The .config file
      • The Makefile file
    • 2.4 - Configuring the Kernel
    • 2.5 - Compiling the Kernel
    • 2.6 - Installing the Kernel
  • LAB #3 - Managing Quotas
    • 3.1 - The quotacheck Command
    • 3.2 - The edquota Command
    • 3.3 - The quotaon Command
    • 3.4 - The repquota Command
    • 3.5 - The quota Command
    • 3.6 - The warnquota Command

• LCE603 - Managing the Network
  • Presentation
    • The nmcli Command
  • LAB #1 - Configuring the Network
    • 1.1 - Connections and Profils
    • 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 Activating and Disactivating a Device
    • 1.7 - Static Routing
      • The ip Command
      • Disactivating/Activating Internal Routing on a Server
  • LAB #2 - Diagnostics
    • 2.1 - The ping Command
    • 2.2 - The netstat Command
    • 2.3 - The traceroute Command
  • LAB #3 - SSH
    • 3.1 - Presentation
      • SSH-1
      • SSH-2
    • 3.2 - Configuring the Server
    • 3.3 - Configuring the Client
    • 3.4 - SCP
      • Presentation
      • Usage
    • 3.5 - Authentication with Asymetric Keys

• LCE511 - Training Validation
  • Course Materials
  • Reminder of the Training Program
    • Day #1
    • Day #2
    • Day #3
    • Day #4
  • Training Evaluation
  • Exam - Acquired knowledge

Copyright © 2022 Hugh Norris - Non-contractual document. The Training Program may be modified without notice.