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Course Outline
Introduction
- Overview of Oracle Linux for government
- Exploring the gateway machine
- Exploring the host VM
Getting Started with Oracle Linux
- Installing Oracle Linux 8
- Connecting to a remote server using SSH
- Configuring OpenSSH for secure access
Using the GRUB Bootloader
- Overview of the GRUB Bootloader for government systems
- Configuring the GRUB 2 Bootloader to enhance system security and stability
- Exploring the GRUB 2 Bootloader functionalities
- Booting different kernels for flexibility and redundancy
Introduction to Systemd
- Overview of systemd, a critical component for government IT operations
- Understanding the service unit file structure for efficient management
- Using the GRUB menu and command line for advanced boot options
- Utilizing systemd units to manage services and tasks
- Leveraging systemd service units for reliable system operation
Managing Time
- Managing system tasks to ensure timely execution of processes
- Configuring date and time settings for accurate timestamping
- Configuring Chrony for precise network time synchronization
- Automating tasks to streamline administrative workflows
Configuring Devices and Kernel
- Understanding the sysfs file system for device management
- Updating using DNF to maintain current software versions
- Using loadable kernel modules to extend functionality
- Utilizing /proc and sysfs file systems for real-time data access
- Using the sysctl utility to adjust kernel parameters dynamically
- Configuring udev rules to manage device events and permissions
Managing Packages
- Installing, updating, or removing packages using dnf for efficient package management
- Using the rpm utility for low-level package operations
- Accessing the Oracle Linux yum server to ensure secure software sources
- Creating a local yum repository for centralized package distribution
- Utilizing the dnf utility and modules for advanced package management
Using Oracle Ksplice
- Navigating the Ksplice web interface for zero-downtime updates
- Installing the Ksplice offline client for secure environment updates
- Applying Ksplice online updates to maintain system security and performance
User and Group Administration
- Managing group account administration for effective user management
- Installing and using Oracle/local case files for customized configurations
- Administering user and group accounts to ensure proper access control
- Implementing user private groups for enhanced security practices
- Configuring password aging policies to enforce strong authentication
- Allowing and restricting sudo commands to manage administrative privileges
Using Partitions, File Systems, and Swap
- Removing partitions to reconfigure storage layouts
- Understanding file system types for optimal performance
- Listing the current disk partitions for inventory management
- Partitioning a storage device to allocate resources efficiently
- Creating ext4 file systems for robust data storage
- Increasing swap space to enhance system responsiveness
Configuring the Network
- Understanding the nmcli radio object for network interface management
- Configuring the eth0 network interface for connectivity
- Using the nmcli and nmtui utilities for network configuration tasks
- Leveraging the ip utility for advanced networking operations
Securing the Network
- Overview of network security best practices for government systems
- Starting and configuring firewalld to protect against unauthorized access
- Configuring nftables for advanced packet filtering and traffic control
Oracle on Oracle
- Understanding Oracle-related shell limits for optimal performance
- Installing and running Oracle database preinstall scripts for seamless setup
- Preparing disks for ASM to ensure high availability and scalability
- Installing and configuring ASMLib for enhanced disk management
- Reverting changes to restore previous configurations when necessary
Monitoring and Managing the System
- Using the top utility to monitor system processes in real-time
- Utilizing OSWatcher analyzer (OSWbba) for detailed performance analysis
- Generating sosreport for comprehensive system diagnostics
- Using standard Linux performance monitoring tools for ongoing oversight
- Installing and using OSWatcher to track system metrics over time
- Leveraging OSWatcher analyzer for in-depth performance reviews
Using System Logging
- Configuring log rotation to manage log file sizes effectively
- Setting up system logging to capture and analyze system events
- Utilizing rsyslog templates for customized log formats
- Employing logwatch for automated log analysis and reporting
- Leveraging systemd-journald for integrated logging and diagnostics
Troubleshooting
Summary and Next Steps
Requirements
- Understanding of the Linux operating system
Audience for government
- System Administrator
- Technical Consultant
- Database Administrator
35 Hours
