Course Outline

Upgrade to Version 7

  • Overview of the upgrade process from RHEL version 6.x to version 7 for government systems.
  • Opportunities and limitations in the upgrade process.

Systemd

  • Comparison between SysV, Upstart, and Systemd for system initialization.
  • Introduction to Systemd for government IT professionals.
  • Service management using systemctl commands.
  • Fundamental concepts: Slices, Services, Targets.
  • Understanding Targets versus Runlevel, and interdependencies between services.
  • Systemd and cgroups: resource restriction, CPU allocation, and remaining resources for government systems.
  • New logging capabilities with the journald mechanism.
  • Methods to detect and solve system issues.

Management System with New Tools

  • Tuned: performance tuning for specific workloads in government environments.
  • Comparison between Chrony and NTP for time synchronization.
  • System Storage Manager (SSM): managing data storage in government systems.
  • Data storage mechanisms: Logical Volume Management (LVM) / dm_cache.


BTRFS and Snapper

  • Introduction to the BTRFS file system for government use.
  • Redundancy features and dynamic resizing capabilities during system operation.
  • Slave volumes and snapshots: enhancing data management.
  • Managing snapshots using Snapper in government IT environments.


Linux Containers, Docker, and Kubernetes

  • Introduction to Linux Containers (LXC) for government applications.
  • Benefits and use cases of containerization in the public sector.
  • Comparison of container technologies: Docker, Rocket, and LXD.
  • Installation, configuration, and administration of the Docker mechanism for government systems.
  • Creating images and managing containers for government IT operations.
  • Kubernetes Container Management for scalable and resilient applications in government environments.


Integration with Windows

  • Introduction to Samba 4 (S4) version 4.5 for government use.
  • New features of the S4 package to enhance interoperability.
  • Samba 4 as an Active Directory domain controller for government networks.
  • Command Line Tools and Remote Server Administration Tools (RSAT) for managing Windows integration in government systems.
  • Samba 4 integration with Windows 200x systems: domain, replication, and group policies.

SSSD and REALMD

  • Installation and configuration of SSSD and realmd for government IT environments.
  • Central authentication of user objects using SSSD in government systems.
  • Integration with Active Directory to support seamless access for government users.
  • An overview of the capabilities provided by SSSD in government contexts.
  • Understanding the roles and functions of SSSD and realmd in government IT infrastructure.

News on High Availability Management Mechanisms

  • New clustering mechanisms: PCS (Pacemaker Configuration System) for enhanced reliability in government systems.
  • Corosync 2.x and Pacemaker as replacements for CMAN (/ Pacemaker).
  • CRM and CIB, and other cluster resources: LSB, systemd, and OCF for government IT management.
  • Primates, Groups, Cloning Groups, and Multi-Resources in cluster configurations.
  • Rules and limitations as integral components of the cluster configuration for government systems.
  • Cluster management with PCS and CRM-Shell tools.
  • Comparison between PCS and CRM-Shell for effective cluster administration in government environments.
  • Emergency failover procedures to ensure continuity in government operations.

Disk Space Management with Ceph

  • Introduction to Software Defined Storage Clusters (Ceph) for government use.
  • Cloud storage management using Ceph for government data centers.
  • Construction and operation of Ceph clusters in government IT environments.
  • Ceph 10.x 'Jewel' integration with the systemd mechanism for enhanced system management.
  • Ceph cluster configuration to support government IT needs.
  • Overview of Ceph-RBD and CephFS for storage solutions in government systems.
  • Operational mechanisms: Crushmaps, Storage Tiering, and Erasure Coding for efficient data management in government settings.
 28 Hours

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