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Linux Security Basics and Beyond: Unit 3

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Linux Security Basics and Beyond: Unit 3

This course is part of Linux Security Basics and Beyond Specialization

Instructors: Pearson

Included with

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1 module

Gain insight into a topic and learn the fundamentals.

Intermediate level

Recommended experience

5 hours to complete

Flexible schedule

Learn at your own pace

1 module

Gain insight into a topic and learn the fundamentals.

Intermediate level

Recommended experience

5 hours to complete

Flexible schedule

Learn at your own pace

What you'll learn

Understand and implement various Linux-based firewall technologies, including UFW, firewalld, and nftables.
Configure and manage firewalls to control network traffic and enhance system security.
Secure SSH connections using keys and advanced configuration techniques.
Develop a comprehensive security strategy with a focus on zero trust principles.

Skills you'll gain

Tools you'll learn

Details to know

Shareable certificate

Add to your LinkedIn profile

Assessments

5 assignments

Taught in English

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Build your subject-matter expertise

This course is part of the Linux Security Basics and Beyond Specialization

When you enroll in this course, you'll also be enrolled in this Specialization.

Learn new concepts from industry experts
Gain a foundational understanding of a subject or tool
Develop job-relevant skills with hands-on projects
Earn a shareable career certificate

There is 1 module in this course

This course is designed for aspiring Linux security administrators who are eager to enhance their skills in safeguarding systems and networks. In this course, you will delve into the world of firewalls, exploring tools like UFW, firewalld, and nftables, each offering unique capabilities for robust protection. You'll gain hands-on experience in configuring and managing these firewalls, ensuring your systems are shielded from unauthorized access. Additionally, you'll learn the practice of securing SSH connections, a critical skill for remote system administration. By the end of this course, you will have a solid understanding of firewall technologies and SSH security, empowering you to implement a multi-layered defense strategy with confidence.

This module introduces firewalls, which are used to permit or deny traffic to and from a computer or network. It covers different types of Linux-based firewalls and the meaning behind zero trust mindsets. You will learn about UFW, an uncomplicated firewall and the trade-offs in security that can be associated with ease-of-use firewalls. You'll learn about firewalld, a functional front-end firewall tool that offers increased security. You also learn about nftables and the nft command, currently the most powerful firewalling tool in Linux. Finally, you'll learn how to harden a secure shell server using keys and locking down the SSHD_config file, as well as why incorporating SSH security to firewalling is a critical security step and how to do it.

What's included

34 videos5 assignments

34 videos Total 166 minutes

Module Introduction 2 minutes
Learning objectives 1 minute
What is a Firewall? 3 minutes
Types of Linux-based Firewalls 2 minutes
Zero-Trust Environment Mindset 3 minutes
Learning objectives 0 minutes
UFW Introduction 2 minutes
Setting up UFW 6 minutes
Configuring UFW 10 minutes
Learning objectives 1 minute
firewalld Introduction 2 minutes
Installing and enabling firewalld 7 minutes
Configuring and Testing firewalld 15 minutes
Lock it Down! 3 minutes
Returning the System to its Original State 2 minutes
Learning objectives 2 minutes
Introduction to nftables and the nft command 3 minutes
nftables Setup 4 minutes
Tables > Chains > Rules 3 minutes
Building the nftables Configuration (Part I) 9 minutes
Building the nftables Configuration (Part II) 9 minutes
Saving and Restoring the nftables Configurations 9 minutes
Translating iptables to nftables 8 minutes
Learning objectives 1 minute
Review of SSH 2 minutes
Using Keys to connect via SSH 13 minutes
The sshd_config file 3 minutes
Modifying the default SSH port 8 minutes
Disabling Password-based SSH 3 minutes
Disabling root login via SSH 3 minutes
Exclusive SSH Groups 5 minutes
Authentication Settings 10 minutes
Terminating SSH Connections (Part I) 8 minutes
Terminating SSH Connections (Part II) 7 minutes

5 assignments Total 150 minutes

Introduction to Firewall Security Quiz 30 minutes
UFW Quiz 30 minutes
firewalld Quiz 30 minutes
nftables Quiz 30 minutes
Securing SSH Quiz 30 minutes

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Instructors

Pearson

268 Courses 48,983 learners

Offered by

Pearson

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Frequently asked questions

Yes, you can preview the first video and view the syllabus before you enroll. You must purchase the course to access content not included in the preview.

If you decide to enroll in the course before the session start date, you will have access to all of the lecture videos and readings for the course. You’ll be able to submit assignments once the session starts.

Once you enroll and your session begins, you will have access to all videos and other resources, including reading items and the course discussion forum. You’ll be able to view and submit practice assessments, and complete required graded assignments to earn a grade and a Course Certificate.

Linux Security Basics and Beyond: Unit 3

Linux Security Basics and Beyond: Unit 3

What you'll learn

Skills you'll gain

Tools you'll learn

Details to know

See how employees at top companies are mastering in-demand skills

Build your subject-matter expertise

There is 1 module in this course