Linux Security: The Complete Iptables Firewall Guide from Udemy

This Iptables course covers every major topic related to Netfilter and Iptables including Ipset, advanced matches and targets, NAT, Fort Forwarding, user-defined chains, and many more.

Welcome to the most complete and up-to-date course for learning and using Netfilter & Iptables Linux Firewall, taught by a DevOps Engineer and Professional Trainer.

Just starting out with Linux Security and Iptables? Perfect. This course starts out assuming you're new to Netfilter, Iptables, and Linux Firewalls.

Or maybe you've already tried to learn Iptables by yourself and now you want to put all the pieces together? Then, I'm here to help you. This course has everything you need to know about Netfilter and Iptables.

You'll have lifetime access and you can return and look for a specific Iptables match, target or option anytime you want.

All presentations and Iptables examples used in this course are available for download.

The course contains many quizzes for you to take and test your knowledge.

There are many courses on Linux Security or Iptables. Why should you learn from me?

I'm a Practitioner and an Enthusiast. Welcome to the real world. I have almost 20 years of experience as a Linux Sysadmin, Security Engineer, and Full Stack Developer. I use Linux on a daily basis.
I'm an Educator and I know how to make a syllabus. For the last 10 years, I've trained thousands of people on Linux, Networking, Security, or Programming.

The topics covered in this course are:

Iptables chains and tables
Chains and tables traversal
Anatomy of an iptables rule
Filter large collections of IPs and Networks using Ipset
Filter traffic by country
Iptables matches (implicit & explicit).
Filter Traffic by IP, Network, Port, Protocol, Interface
Iptables targets:
NAT
Port Forwarding
Automation using shell scripts
How to use Iptables Best-Practices

Every topic includes many live examples.

After taking this course, you'll be able to:

Have an In-Depth understanding of Netfilter/Iptables architecture.
Understand Iptables chains and tables.
Understand how a Firewall works.
Create Iptables rules that filter incoming, outgoing, or routed traffic based on any possible criteria including the country the packet is coming from or destined to.
LOG malicious traffic.
Prevent DoS Attacks.
Use Ipset to drop tens of thousands of Networks with no performance degradation.
Optimize Iptables firewalls.
Automate different firewall security tasks using shell scripts.
Configure NAT and
Configure Port Forwarding (DNAT).
Use efficiently Nmap and Netstat.

Good to know

Know what's good

, what to watch for

, and possible dealbreakers

Strengthens an existing foundation for intermediate learners

Builds a strong foundation for beginners

Covers unique perspectives or ideas that may add color to other topics and subjects

Teaches skills, knowledge, and tools that are highly relevant to industry

Provides a comprehensive study of one aspect of history, the arts, or the human condition

Develops professional skills or deep expertise in a particular topic or set of topics

Career center

Learners who complete Linux Security: The Complete Iptables Firewall Guide will develop knowledge and skills that may be useful to these careers:

Blockchain Developer

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Incident Responder

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Cybersecurity Engineer

A Cybersecurity Engineer designs, implements, and manages security measures to protect an organization's computer systems and networks from cyberattacks. The knowledge and skills gained in this course may be useful in pursuing a career in Cybersecurity Engineering.

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Penetration Tester

A Penetration Tester is responsible for testing the security of an organization's computer systems and networks by simulating cyberattacks. This course may be helpful in gaining the knowledge and skills needed to become a Penetration Tester.

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Malware Analyst

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Security Architect

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Machine Learning Engineer

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Data Scientist

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Cloud Security Engineer

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Network Administrator

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Information Security Manager

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IT Security Analyst

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Software Engineer

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Network Security Engineer

A Network Security Engineer helps to design, implement, and manage security measures to protect an organization's computer networks from unauthorized access, use, disclosure, disruption, modification, or destruction. Completing this course may be useful in developing a strong foundation for a career in Network Security Engineering.

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Linux Security

The Complete Iptables Firewall Guide

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