Oracle Linux 8: System Administration III

• Completion of Oracle Linux 8: System Administration II or equivalent experience
• Familiarity with command-line operations and basic Linux administration tasks

Audience

• Senior Linux system administrators
• IT professionals

Oracle Linux 8: System Administration III focuses on complex and enterprise-level Linux administration topics, including performance tuning, security configurations, automation, high availability, and disaster recovery.

This instructor-led, live training (online or onsite) is aimed at advanced-level system administrators who wish to learn advanced system administration tasks, security configurations, network management, automation, and performance tuning for enterprise environments.

By the end of this training, participants will be able to:

• Master advanced package management techniques, including creating custom repositories, resolving dependencies, and managing RPM packages with GPG keys.
• Implement and manage advanced filesystems and storage solutions using LVM, encryption, snapshots, and high-performance filesystems like XFS, Btrfs, and ZFS.
• Configure and manage advanced network services such as NIC bonding/teaming, VPNs, and secure remote administration tools.
• Configure high-availability clusters using Pacemaker and Corosync, including setting up failover services and monitoring cluster health.
• Manage virtualization environments with Oracle Linux Virtualization Manager (OLVM), and containers using Docker and Podman for container orchestration.

Format of the Course

• Interactive lecture and discussion.
• Lots of exercises and practice.
• Hands-on implementation in a live-lab environment.

Course Customization Options

• To request a customized training for this course, please contact us to arrange.

Introduction

Advanced Package Management

• Overview of YUM and DNF advanced features
• Managing software repositories and creating custom repositories
• Dependency resolution and troubleshooting package issues
• RPM package management (creating, verifying, and uninstalling)
• GPG key management for package integrity

Advanced Filesystem Management

• Advanced partitioning and filesystems (XFS, Btrfs, ZFS)
• Creating and managing LVM snapshots and backups
• Filesystem performance tuning and quotas
• Encrypting filesystems and securing data at rest
• Managing large-scale storage (NFS, iSCSI, SAN)

Network Services and Security

• Advanced network configuration using NetworkManager
• Managing multiple NICs and configuring bonding/teaming
• Configuring firewalld for network security
• Intrusion detection and prevention systems (IDPS)
• Secure remote administration with SSH and VPNs

Kernel Tuning and System Performance

• Overview of kernel modules and tuning parameters
• Managing kernel updates and rollbacks
• Performance profiling and monitoring
• Tuning memory, CPU, and I/O for optimal performance
• Scheduling tasks and managing resources with cgroups and systemd

System Security and SELinux

• Understanding SELinux policies and modes
• Managing and troubleshooting SELinux contexts
• Auditing system security with auditd and journald
• Configuring secure boot and kernel lockdown
• Implementing security policies with OpenSCAP and CIS benchmarks

Automation with Ansible and Shell Scripting

• Introduction to Ansible for system automation
• Writing playbooks and managing inventories
• Automating common tasks (e.g., user management, system updates)
• Creating shell scripts for task automation
• Scheduling automated tasks with corn and at

High Availability and Clustering

• Configuring Oracle Linux Cluster for high availability
• Managing failover services and cluster nodes
• Setting up and managing Pacemaker and Corosync
• Configuring storage for HA (DRBD, GFS2)
• Monitoring and troubleshooting cluster performance

Virtualization and Containers

• Overview of Oracle Linux Virtualization Manager (OLVM)
• Managing virtual machines and containers
• Configuring KVM and Libvirt for VM management
• Introduction to Docker and Podman for containerized environments
• Securing and troubleshooting virtualization and containers

Disaster Recovery and Backup Solutions

• Setting up automated backups with Bacula and Amanda
• Using rsync for remote backups and synchronization
• Disaster recovery strategies and planning
• Configuring RAID for data redundancy and recovery
• Recovering systems using snapshots and restoring filesystems

Troubleshooting and Optimization

• Advanced system logging and analysis (journald, rsyslog)
• Diagnosing performance bottlenecks and resource constraints
• Troubleshooting boot and system failures
• Kernel and hardware troubleshooting techniques
• Best practices for ongoing system optimization

Summary and Next Steps