Oracle Linux 9: System Administration III

• Completion of Oracle Linux 9: System Administration II or equivalent experience
• Familiarity with shell scripting, storage, and service management

Audience

• Senior system administrators and Linux engineers
• DevOps professionals working in enterprise Oracle Linux environments
• Technical staff preparing for high-availability and advanced automation scenarios

Oracle Linux 9 offers powerful tools and features for building secure, scalable, and highly available environments. This advanced-level course focuses on enterprise system design, security hardening, networked services, kernel tuning, and automation using Ansible.

This instructor-led, live training (online or onsite) is aimed at advanced-level Linux professionals who wish to deepen their expertise in deploying and maintaining mission-critical Oracle Linux 9 infrastructure.

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

• Deploy and manage high-availability services using clustering tools.
• Configure secure network services and enforce system-wide hardening.
• Automate infrastructure using Ansible playbooks.
• Tune system performance for specific workloads and services.

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.

Kernel and Performance Tuning

• Sysctl parameters and persistent tuning
• CPU and memory tuning profiles
• Real-time performance monitoring and bottleneck analysis

Security Hardening

• Securing SSH and remote access
• Limiting root and sudo privileges
• System-wide hardening checklists and scripts

Advanced Networking and Firewalld

• Advanced firewalld use with rich rules and direct configuration
• Managing NAT, port forwarding, and masquerading
• Network namespaces and isolated environments

High Availability and Clustering

• Overview of Oracle Clusterware and Pacemaker/Corosync
• Setting up high-availability clusters
• Failover and resource management scenarios

Storage and Network File Systems

• iSCSI targets and initiators
• Using NFSv4 and SMB/CIFS securely
• GlusterFS and distributed storage concepts

Automation with Ansible

• Writing and executing Ansible playbooks
• Using roles, handlers, and variables
• Automating configuration and service deployment

System Logging and Centralized Monitoring

• Using journald and rsyslog effectively
• Integrating with centralized logging solutions (e.g., ELK)
• Setting up alerts and audit trails

Summary and Next Steps