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Course Outline
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 cron 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
Requirements
- 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.
35 Hours
