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 Duration 21 hours

Course Outline

Kernel and Performance Optimization

  • Managing Sysctl parameters and persistent configurations
  • Tuning CPU and memory profiles
  • Real-time performance tracking and identifying bottlenecks

Security Reinforcement

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

Advanced Networking and Firewalld

  • Implementing advanced firewalld configurations with rich rules and direct settings
  • Handling NAT, port forwarding, and masquerading tasks
  • Utilizing network namespaces for isolated environments

High Availability and Clustering

  • Introduction to Oracle Clusterware and Pacemaker/Corosync
  • Establishing high-availability cluster setups
  • Managing failover and resource distribution scenarios

Storage and Network File Systems

  • Configuring iSCSI targets and initiators
  • Safely utilizing NFSv4 and SMB/CIFS protocols
  • Understanding GlusterFS and distributed storage principles

Automation with Ansible

  • Creating and running Ansible playbooks
  • Leveraging roles, handlers, and variables
  • Automating system configuration and service rollouts

System Logging and Centralized Monitoring

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

Conclusion and Future Directions

Requirements

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

Target Audience

  • Experienced system administrators and Linux engineers
  • DevOps specialists managing enterprise Oracle Linux environments
  • Technical teams focusing on high-availability architectures and advanced automation

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