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 Duration 21 hours (3 days)

Course Outline

Kernel and Performance Optimization

  • Configuration of Sysctl parameters and persistent tuning strategies
  • Profiling for CPU and memory efficiency
  • Real-time performance monitoring and analysis of bottlenecks

Security Hardening

  • Securing SSH and remote access channels
  • Restricting root and sudo privileges
  • Applying system-wide hardening checklists and scripts

Advanced Networking and Firewalld

  • Sophisticated Firewalld configuration using rich rules and direct settings
  • Managing NAT, port forwarding, and masquerading
  • Utilizing network namespaces for isolated environments

High Availability and Clustering

  • Introduction to Oracle Clusterware and Pacemaker/Corosync
  • Establishment of high-availability clusters
  • Failover mechanisms and resource management scenarios

Storage and Network File Systems

  • Management of iSCSI targets and initiators
  • Secure utilization of NFSv4 and SMB/CIFS
  • Concepts of GlusterFS and distributed storage

Automation with Ansible

  • Creation and execution of Ansible playbooks
  • Leveraging roles, handlers, and variables
  • Automating configuration and service deployment

System Logging and Centralized Monitoring

  • Effective use of journald and rsyslog
  • Integration with centralized logging platforms (e.g., ELK)
  • Configuration of alerts and audit trails

Summary and Next Steps

Requirements

  • Successful completion of Oracle Linux 9: System Administration II or comparable practical experience
  • Proficiency in shell scripting, storage management, and service administration

Target Audience

  • Senior system administrators and Linux engineers
  • DevOps professionals operating within enterprise Oracle Linux ecosystems
  • Technical personnel preparing for high-availability and advanced automation challenges

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