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Linux Security: The Complete Iptables Firewall Guide

Linux Security Improved. Create professional Netfilter/Iptables Firewalls. All you need to know about Netfilter/Iptables
4.5
4.5/5
(1,033 reviews)
6,598 students
Created by

9.7

Classbaze Grade®

10.0

Freshness

8.9

Popularity

9.5

Material

Linux Security Improved. Create professional Netfilter/Iptables Firewalls. All you need to know about Netfilter/Iptables
Platform: Udemy
Video: 6h 40m
Language: English
Next start: On Demand

Best Linux Security classes:

Classbaze Rating

Classbaze Grade®

9.7 / 10

CourseMarks Score® helps students to find the best classes. We aggregate 18 factors, including freshness, student feedback and content diversity.

Freshness

10.0 / 10
This course was last updated on 5/2022.

Course content can become outdated quite quickly. After analysing 71,530 courses, we found that the highest rated courses are updated every year. If a course has not been updated for more than 2 years, you should carefully evaluate the course before enrolling.

Popularity

8.9 / 10
We analyzed factors such as the rating (4.5/5) and the ratio between the number of reviews and the number of students, which is a great signal of student commitment.

New courses are hard to evaluate because there are no or just a few student ratings, but Student Feedback Score helps you find great courses even with fewer reviews.

Material

9.5 / 10
Video Score: 8.6 / 10
The course includes 6h 40m video content. Courses with more videos usually have a higher average rating. We have found that the sweet spot is 16 hours of video, which is long enough to teach a topic comprehensively, but not overwhelming. Courses over 16 hours of video gets the maximum score.
The average video length is 4 hours 15 minutes of 13 Linux Security courses on Udemy.
Detail Score: 10.0 / 10

The top online course contains a detailed description of the course, what you will learn and also a detailed description about the instructor.

Extra Content Score: 9.9 / 10

Tests, exercises, articles and other resources help students to better understand and deepen their understanding of the topic.

This course contains:

37 articles.
33 resources.
0 exercise.
0 test.

In this page

About the course

***Fully updated for 2022*** 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, MAC, TCP Flags, Date and Time, Quota, etc.
•Iptables targets: DROP, REJECT, ACCEPT, LOG, REDIRECT, TEE, SNAT, DNAT, MASQUERADE, etc.
•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 MASQUERADE.
•Configure Port Forwarding (DNAT).
•User efficiently Nmap and Netstat.

What can you learn from this course?

✓ Acquire an In-Depth Understanding of Netfilter/Iptables Linux Firewall (Chains, Tables, Matches, Targets).
✓ Acquire the Skills to build Advanced Iptables Firewalls. Hands-on experience with Iptables.
✓ Learn to work efficiently with IPSET to drop large collections of IPs and Networks (like entire Countries)
✓ Understand Iptables Best Practices for creating custom Firewalls.
✓ Acquire the Skills to configure a Linux OS as a NAT Router.
✓ Acquire the Skills to configure Port Forwarding on Linux Routers.
✓ See practical examples for EACH Iptables Command, Match or Target.
✓ Use Shell Scripts to automate tasks like blocking or permitting a service, an IP/Network or a MAC address.
✓ Apply the Skills to secure Servers, Networks, Routers or Linux Desktop Operating Systems.
✓ Hundreds of hands-on exercises with solutions and quizzes.

What you need to start the course?

• Local root access to a Linux distribution like Ubuntu or CentOS. No paid software required.
• Linux Basics like commands, file permissions, text editors etc.
• Basic knowledge of TCP/IP stack (how clients and servers typically communicate, TCP, UDP, ICMP, IP’s, ports, etc).
• Very basic knowledge of other Networking concepts like NAT or Routing.

Who is this course is made for?

• Linux Sysadmins.
• Network Administrators.
• DevOps Engineers.
• Security Professionals.

Are there coupons or discounts for Linux Security: The Complete Iptables Firewall Guide ? What is the current price?

The course costs $14.99. And currently there is a 82% discount on the original price of the course, which was $84.99. So you save $70 if you enroll the course now.
The average price is $16.1 of 13 Linux Security courses. So this course is 7% cheaper than the average Linux Security course on Udemy.

Will I be refunded if I'm not satisfied with the Linux Security: The Complete Iptables Firewall Guide course?

YES, Linux Security: The Complete Iptables Firewall Guide has a 30-day money back guarantee. The 30-day refund policy is designed to allow students to study without risk.

Are there any financial aid for this course?

Currently we could not find a scholarship for the Linux Security: The Complete Iptables Firewall Guide course, but there is a $70 discount from the original price ($84.99). So the current price is just $14.99.

Who will teach this course? Can I trust Andrei Dumitrescu?

Andrei Dumitrescu has created 8 courses that got 10,051 reviews which are generally positive. Andrei Dumitrescu has taught 68,725 students and received a 4.6 average review out of 10,051 reviews. Depending on the information available, we think that Andrei Dumitrescu is an instructor that you can trust.
DevOps Engineer and Professional Trainer
I’ve been a Network and Software Engineer for over 15 years, the typical profile of a DevOps Engineer.
I’ve co-founded Crystal Mind Academy, a Cisco Academy and professional training center in Romania, that focuses on teaching cutting-edge technologies to students.
I have contributed to education in the areas of programming, information security, and operating systems. During the last 15 years, more than 50,000 thousand students have participated in in-person or online training programs at Crystal Mind Academy.
I have developed documentation, labs, and case studies for many training programs such as Cisco CCNA, CCNA Security, CCNP, Linux Administration, Information Security, Python Programming, Network Automation with Python or Blockchain Programming (Ethereum/Solidity) which have been successfully attended by thousands over the years.
When I’m not working, I crossfit, read a good book, enjoy a good time or travel with my wife and children.
Browse all courses by on Classbaze.

9.7

Classbaze Grade®

10.0

Freshness

8.9

Popularity

9.5

Material

Platform: Udemy
Video: 6h 40m
Language: English
Next start: On Demand

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