Hello, and welcome to Configuring a Firewall.
In this lesson, you'll learn how to configure a Linux firewall.
I'll first explain about network ports which are an essential component of Linux firewalls.
Next, I'll explain how firewalls are working in general.
And after that, we can zoom in and talk about the most common Linux firewall solutions,
UFW, Firewall-D, and IP tables.
You'll also learn about NF tables, which is the latest firewall solution that has been
introduced to Linux.
And as always, this lesson ends with a lab as well as lab solution.