Course Description
Step into the world of network security and take full control of your traffic with IPTABLES, the powerful firewall tool built into every Linux system. Whether you’re an IT professional, system administrator, or security enthusiast, this course will guide you from the fundamentals to hands-on implementation, helping you build a rock-solid defense for your networks.
Through a mix of theory and practical labs, you’ll explore everything from basic IPTABLES architecture and packet flow, to advanced rule manipulation, NAT, DNAT/SNAT, and DoS mitigation techniques. You’ll also gain real-world experience creating whitelist and blacklist strategies, managing traffic rules, and visualizing how your firewall decisions impact packet flow.
This course is designed with a clear and dynamic structure to keep you engaged and ensure you truly master firewall security with IPTABLES.
🎯 What You’ll Learn
- Understand the role and importance of firewalls in network security.
- Master the architecture and components of IPTABLES, including tables, chains, and hookpoints.
- Grasp key Linux kernel concepts related to packet filtering.
- Learn to use NAT, DNAT, and SNAT for advanced traffic manipulation.
- Apply and manage rules effectively with add, modify, replace, and delete commands.
- Create whitelist and blacklist strategies to filter traffic with precision.
- Visualize and trace the flow of network packets through your ruleset.
- Implement default policies and prepare strong DoS mitigation techniques.
- Build a solid foundation in iptables syntax and manual usage.
- Get hands-on with Ubuntu 22.10 to apply your knowledge in real scenarios.
Section 1: Introduction to IPTABLES
- Lecture 1: Discover the Power of Firewalls! (Preview Enabled)
- Lecture 2: What is iptables? Uncover Its Impact and Relevance (Preview Enabled)
- Lecture 3: IPTABLES Architecture: Explore the Foundations of Network Security (Preview Enabled)
- Lecture 4: Linux Kernel Concepts
- Lecture 5: NAT: Master the Art of Network Address Translation
- Lecture 6: Hookpoints: Catch Packets at Strategic Points (Preview Enabled)
- Lecture 7: Tables: Organize and Control Your Firewall Rules Like a Pro
- Lecture 8: Relationship Between Tables and Hookpoints
- Lecture 9: Packet Flow: Discover How Packets Travel Through the Network (Preview Enabled)
- Lecture 10: Matches: Find the Perfect Packet Using the Right Criteria
- Lecture 11: Targets: Master the Art of Making Decisions for Your Network Packets
Section 2: Hands-On!
- Lecture 12: Get Ready for the Adventure! Installing Ubuntu 22.10
- Lecture 13: Iptables Manual and Syntax
- Lecture 14: Example 1: NAT – Transform and Direct Traffic
- Lecture 15: Visual Flow of Example 1 (NAT): See How Your Rules Shape Network Traffic
- Lecture 16: Example 2: DNAT and SNAT – Master the Art of Redirecting and Transforming Traffic
- Lecture 17: Add and Modify Rules: Customize Your Firewall!
- Lecture 18: Replace Rules: Instantly Update Your Security Strategy
- Lecture 19: Delete Rules
- Lecture 20: Monitor Traffic Matching a Specific Rule
- Lecture 21: Introduction to Whitelists and Blacklists: The Power of Allowing or Blocking
- Lecture 22: What is a Whitelist?
- Lecture 23: What is a Blacklist?
- Lecture 24: When to Use Each: Choose Wisely Based on Your Security Needs
- Lecture 25: Which is Better? The Clash of Security Strategies
- Lecture 26: Default Policy: The Last Line of Defense for Your Network
- Lecture 27: Whitelist Exercise
- Lecture 28: Blacklist Exercise: Block and Neutralize Known Threats on Your Network
- Lecture 29: DoS Attack Mitigation
- Lecture 30: Farewell