Overview

This class focuses on implementing iptables to protect your Linux host using iptables. Iptables is so powerful, with a little bit of understanding of how it works you can implement complex firewall rules that protects your Linux host from attacks and resource exhaustion. Since Linux is the operating system of choice for Internet Of Things devices IoT, cloud services, network devices and numerous other purpose build devices, having the knowledge would allow you to ward off attacks and protect your host.Some of the topics covered are:1. Understanding iptables chains, tables and processing order.2. Understanding the statefullness of the firewall and how you can track sessions and allow only necessary traffic.3. Understand how to configure your Linux host for Network Address Translation for both source and destination NAT.4. Understand how to configure connection limits to prevent DoS.5. Understand how to restrict packets and bandwidth per time window.6. Understand how to restrict user traffic based on their user ID.7. Understand how to restrict traffic based on group ID.8. Understand how to use ipset to simplify iptables management.9. Understand how to block malicious IP addresses based on emerging threats and other lists.10. Understand how to use FQDN objects in iptables to dynamically allow hosts inbound or outbound using FQDN objects.11. understand how to configure GeoLocation blocking with iptables.This class doesn't include any material other what's available in the lectures.

Skills

Reviews