CentOS Administration syllabus

1. Introduction to CentOS and Linux Basics

• Overview of CentOS and Its Role in Enterprise Environments
• Linux Fundamentals:
  • Command-Line Basics
  • File System Hierarchy
  • Essential Commands (ls, cd, mkdir, etc.)

2. Installation and Initial Configuration

• Installing CentOS:
  • Installation Methods (DVD, USB, Network)
  • Partitioning and Filesystem Selection
• Initial System Setup:
  • User and Group Management
  • Network Configuration (Static IP, DHCP, DNS)

3. Package Management

• RPM Package Manager:
  • Installing, Updating, and Removing Packages
  • Managing Repositories
• YUM (Yellowdog Updater Modified):
  • Configuration and Usage
  • Working with Repositories and Package Groups

4. System Administration Tasks

• Filesystem Administration:
  • Disk Management (fdisk, parted)
  • Filesystem Types (ext4, XFS)
  • Mounting and Unmounting Filesystems
• Process Management:
  • Process Monitoring (ps, top, htop)
  • Managing Processes (kill, nice, renice)
• System Monitoring and Performance:
  • Monitoring Tools (vmstat, iostat, sar)
  • Performance Tuning and Optimization

5. Security and Networking

• Firewall Configuration:
  • Using firewalld and iptables
  • Configuring Rules and Zones
• SSH Server Configuration:
  • SSH Keys and Authentication
  • Securing SSH Access (Configuring sshd)
• SELinux (Security-Enhanced Linux):
  • Overview and Basic Configuration
  • Managing SELinux Contexts and Policies

6. Advanced Administration Topics

• Automation with Shell Scripting:
  • Bash Scripting Fundamentals
  • Writing and Executing Scripts
• Backup and Recovery:
  • Data Backup Strategies (tar, rsync)
  • System Recovery Techniques
• Virtualization with KVM:
  • Introduction to Kernel-based Virtual Machine
  • Installing and Managing Virtual Machines

7. Web and File Servers

• Apache HTTP Server:
  • Installation and Basic Configuration
  • Managing Virtual Hosts
• Samba File Server:
  • Setting Up File Sharing with Samba
  • Configuring Shares and Permissions

8. Containerization with Docker (Optional)

• Introduction to Docker:
  • Docker Architecture and Components
  • Running and Managing Containers
• Docker Networking and Volumes:
  • Configuring Networks and Storage for Containers

9. Troubleshooting and Maintenance

• System Logs and Log Management:
  • Understanding System Logs (syslog, journalctl)
  • Log Rotation and Management
• Diagnosing System Issues:
  • Common Troubleshooting Techniques
  • Utilizing System Diagnostic Tools

10. Final Project and Review

• Integration and Practical Application:
  • Project-Based Assignments
  • Review of Key Concepts and Skills