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Enterprise Linux System Administration

H7091S

Course ID

H7091S

Duration

5 days

Format

ILT/VILT

Schedule, pricing & registration

Browse related courses

Overview

This course explores the installation, configuration, and maintenance of Linux systems. It focuses on issues universal to every workstation and server, and course material is designed to provide extensive hands-on experience. This course supports Red Hat Enterprise Linux 9 and SUSE Linux Enterprise 15.


Course ID

H7091S

Duration

5 days

Format

ILT/VILT

Schedule, pricing & registration

Browse related courses

  • Audience

    This course is ideal for aspiring system administrators, IT professionals, developers, DevOps engineers, technology enthusiasts, and cybersecurity professionals.

  • Prerequisites

    There are no prerequisites for this course, but before attending you should have the following:

    • Comfort working in a Linux or Unix environment
    • An understanding of the Linux filesystem, process management, and how to edit files
    • An understanding of network concepts and the TCP/IP protocol suite is helpful
    • Completed Linux Fundamentals (GL120) (U8583S) or have equivalent knowledge

  • Objectives

    After completing this course, you should be able to:

    • Work with kernel and devices
    • Understand boot process
    • Maintain software
    • Administer local and remote storage
    • Manage LVM and RAID
    • Manage users and groups
    • Secure systems
    • Administer networking
    • Monitor and troubleshoot systems
    • Install systems
    • Manage virtual machines

  • Course outline

Module 1: Linux Kernel and Devices
  • Hardware discovery tools
  • Kernel hardware info—/sys/
  • /sys/ structure
  • udev
  • Managing Linux device files
  • List block devices
  • SCSI devices
  • USB devices
  • USB architecture
  • Kernel modules
  • Configuring kernel components and modules
  • Handling module dependencies
  • Configuring the kernel via /proc/
  • Console
  • Virtual terminals
  • Keyboard and locale configuration
  • Serial ports
  • Random numbers and /dev/random

Module 2: Systemd Overview
  • System boot method overview
  • systemd system and service manager
  • Modifying systemd services
  • systemd service sandboxing features
  • systemd targets
  • Using systemd
  • Linux runlevels aliases
  • Legacy support for SysV init

Module 3: Grub2/Systemd Boot Process
  • Booting Linux on PCs
  • GRUB 2
  • GRUB 2 configuration
  • The boot loader specification
  • GRUB 2 security
  • Boot parameters
  • Initial RAM filesystem
  • init
  • systemd local-fs.target and sysinit.target
  • systemd basic.target and multi-user.target
  • Legacy local bootup script support
  • System configuration files
  • RHEL9 configuration utilities
  • Shutdown and reboot

Module 4: Software Maintenance
  • Managing software
  • RPM features
  • RPM architecture
  • RPM package files
  • Working with RPMs
  • Querying and verifying with RPM
  • Updating the kernel RPM
  • Dealing with RPM Yum digest changes
  • DNF plugins and RHSM subscription manager
  • DNF version lock plugin
  • DNF repositories
  • DNF repository groups
  • Compiling/installing from source
  • Manually installed shared libraries
  • Rebuilding source RPM packages

Module 5: Local Storage Administration
  • Partitioning disks with fdisk and gdisk
  • Resizing a GPT partition with gdisk
  • Partitioning disks with parted
  • Non-interactive disk partitioning with sfdisk
  • Filesystem creation
  • Persistent block devices
  • Mounting filesystems
  • Resizing filesystems
  • Filesystem maintenance
  • Managing an XFS filesystem
  • Swap
  • Filesystem structures
  • Determining disk usage with df and du
  • Configuring disk quotas
  • Setting quotas
  • Viewing and monitoring quotas
  • XFS project quotas
  • Filesystem attributes

Module 6: LVM and RAID
  • Logical volume management (LVM)
  • Implementing LVM
  • Creating logical volumes
  • Activating LVM VGs
  • Exporting and importing a VG
  • Examining LVM components
  • Changing LVM components
  • Advanced LVM overview
  • Advanced LVM: components and object tags
  • Advanced LVM: automated storage tiering
  • Advanced LVM: thin provisioning
  • Advanced LVM: striping and mirroring
  • Advanced LVM: RAID volumes
  • RAID concepts
  • Array creation with mdadm
  • Software RAID monitoring
  • Software RAID control and display

Module 7: Remote Storage Administration
  • Remote storage overview
  • Remote filesystem protocols
  • Remote block device protocols
  • File sharing via NFS
  • NFSv4+
  • NFS clients
  • NFS server configuration
  • Implementing NFSv4
  • AutoFS
  • AutoFS configuration
  • Accessing Windows/Samba shares from Linux
  • SAN multipathing
  • Multipath configuration
  • Multipathing best practices
  • iSCSI architecture
  • Open-iSCSI initiator implementation
  • iSCSI initiator discovery
  • iSCSI initiator node administration
  • Mounting iSCSI targets at boot
  • iSCSI multipathing considerations

Module 8: User/Group Administration
  • Approaches to storing user accounts
  • User and group concepts
  • User administration
  • Modifying accounts
  • Group administration
  • Password aging
  • Default user files
  • Controlling login sessions
  • RHEL DS client configuration
  • System security services daemon (SSSD)

Module 9: Pluggable Authentication Modules (PAM)
  • PAM overview
  • PAM module types
  • PAM order of processing
  • PAM control statements
  • PAM modules
  • pam_unix
  • pam_nologin.so
  • pam_limits.so
  • pam_wheel.so
  • pam_xauth.so

Module 10: Security Administration
  • Security concepts
  • Tightening default security
  • Security advisories
  • Fine grained authorizations with Polkit
  • File access control lists
  • Manipulating FACLs
  • Viewing FACLs
  • Backing up FACLs
  • File creation permissions with umask
  • User private group scheme
  • Alternatives to UPG
  • SELinux security framework
  • SELinux modes
  • SELinux commands
  • Choosing an SELinux policy
  • SELinux Booleans
  • Permissive domains
  • SELinux policy tools
  • FirewallD

Module 11: Basic Networking
  • IPv4 fundamentals
  • TCP/UDP Fundamentals
  • Linux network interfaces
  • Ethernet hardware tools
  • Network configuration with ip command
  • Configuring routing tables
  • IP to MAC address mapping with ARP
  • Starting and stopping interfaces
  • NetworkManager
  • DNS clients
  • DHCP clients
  • Network diagnostics
  • Information from ss and netstat
  • Hardware and system clock
  • Continual time sync with NTP
  • Time synchronization with chronyd

Module 12: Advanced Networking
  • Multiple IP addresses
  • Configuring a DHCP server
  • IPv6
  • Interface aggregation
  • Interface bonding
  • Network teaming
  • Interface bridging
  • 802.1q VLANS
  • Tuning kernel network settings
  • TCP congestion control

Module 13: Log File Administration
  • System logging
  • systemd journal
  • systemd journal's journalctl
  • Secure logging with journal's log sealing
  • Cockpit - logs
  • rsyslog
  • /etc/rsyslog.conf
  • Log management
  • Log anomaly detector
  • Sending logs from the shell

Module 14: Monitoring and Troubleshooting
  • System status—memory
  • System status—I/O
  • System status—CPU
  • Performance trending with sar
  • Determining service to process mapping
  • Real-time monitoring of resources—cgroups
  • Troubleshooting basics: the process
  • Troubleshooting basics: the tools
  • strace and ltrace
  • Common problems
  • Troubleshooting incorrect file permissions
  • Inability to boot
  • Typos in configuration files
  • Corrupt filesystems
  • RHEL9 rescue environment

Appendix A: Pre-installation Considerations
  • Pre-installation considerations
  • Hardware compatibility
  • Multi-OS booting
  • Partition considerations
  • Filesystem planning
  • Selecting a filesystem

Appendix B: Installing RHEL9
  • Anaconda: overview
  • Anaconda: booting the system
  • Anaconda: common boot options
  • Anaconda: loading Anaconda and packages
  • Anaconda: storage options
  • Anaconda: troubleshooting
  • FirstBoot
  • Kickstart
  • Network booting with PXE
  • Typical install

Appendix C: Installing SLES15
  • YaST install program interface
  • Network installation
  • SLP for SUSE Linux installation
  • Installation choices
  • Kernel crash dump configuration
  • Network booting with PXE
  • Creating AutoYaST2 files
  • Using AutoYaST2 files
  • linuxrc automation
  • Installation diagnostics
  • After the first reboot
  • A typical install

Appendix D: Managing Virtual Machines
  • Virtualization: what and why?
  • Introducing libvirt
  • libvirt: basic concepts
  • libvirt: storage architecture
  • libvirt: network architecture
  • libvirt: graphical tools
  • libvirt: command line tools
  • virsh: basics
  • virsh: common tasks
  • virt-install
  • Virtual machine guest tools and rivers
  • libguestfs and guestfish

Appendix E: Backups
  • Backup software
  • Managing optical media
  • SCSI tape drives and libraries
  • Backup examples

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  • Lab outline

Lab 1: Linux Kernel and Devices
  • Adjusting kernel options
  • Linux kernel driver compilation
  • Introduction to troubleshooting labs
  • Troubleshooting practice: kernel modules

Lab 2: Systemd Overview
  • Managing services with systemd's systemctl
  • Creating a systemd unit file

Lab 3: Grub2/Systemd Boot Process
  • Boot process
  • Booting directly to a bash shell
  • GRUB command line
  • Basic GRUB security
  • Troubleshooting practice: boot process

Lab 4: Software Maintenance
  • Managing software with RPM
  • Creating a custom RPM repository
  • Querying the RPM database
  • Installing software via RPM and source and rebuilding SRPMs
  • Troubleshooting practice: package management

Lab 5: Local Storage Administration
  • Creating and managing filesystems
  • Hot adding wwap
  • XFS copy-on-write
  • Setting user quotas
  • Creating XFS project quotas

Lab 6: LVM and RAID
  • Creating and managing LVM volumes
  • Creating LVM thin volumes
  • Using boom to boot to an LVM Snapshot
  • Troubleshooting practice: LVM
  • Creating and managing a RAID-5 array

Lab 7: Remote Storage Administration
  • Using autofs
  • NFS server configuration
  • iSCSI initiator configuration
  • Multipathing with iSCSI

Lab 8: User/Group Administration
  • User and group administration
  • Using LDAP for centralized user accounts
  • Troubleshooting practice: account management

Lab 9: Pluggable Authentication Modules (PAM)
  • Restricting superuser access to wheel group membership
  • Using pam_nologin to restrict logins
  • Setting limits with the pam_limits modules
  • Using pam_limits to restrict simultaneous logins

Lab 10: Security Administration
  • User private groups
  • Using filesystem ACLs
  • Exploring SELinux modes
  • SELinux file contexts
  • SELinux contexts in action

Lab 11: Basic Networking
  • Network discovery
  • Using nmcli
  • Chrony client configuration

Lab 12: Advanced Networking
  • Multiple IP addresses per network interface
  • Configuring IPv6
  • TCP congestion control
  • Troubleshooting practice: networking

Lab 13: Log File Administration
  • Using the systemd journal
  • Setting up a full debug logfile
  • Remote Syslog configuration
  • Remote Rsyslog TLS configuration

Lab 14: Monitoring and Troubleshooting
  • System activity reporter

Lab B: Installing RHEL9
  • Linux installation
  • Automating installation with Kickstart

Lab C: Installing SLES15
  • SUSE Linux Enterprise Server installation
  • Automating installation with AutoYaST

Lab D: Managing Virtual Machines
  • Installing a virtual machine

Lab E: Backups
  • Using rsync and ssh for backups
  • Using tar for backups
  • Using cpio for backups
  • Creating ISO images for backups
  • Using dump and restore for backups

Learn more

hpe.com/ww/learnlinux

© Copyright 2025 Hewlett Packard Enterprise Development LP. The information contained herein is subject to change without notice. The only warranties for Hewlett Packard Enterprise products and services are set forth in the express warranty statements accompanying such products and services. Nothing herein should be construed as constituting an additional warranty.

Hewlett Packard Enterprise shall not be liable for technical or editorial errors or omissions contained herein.

All third-party marks are property of their respective owners.

a50013585enw, H7091S P.00, June 2025

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