Introduction to Firewalls
Pluralsight
Course Summary
If you know the basics of networking but have been mystified by firewalls, this course is for you. This course will give you the detailed fundamentals of how a stateful firewall operates and how it functions in a network.
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Course Description
Firewalls have quickly become a mandatory part of every network, and most IT professionals and developers have experienced a situation where their application isn't working on a network so it blames the firewall. This course, Introduction to Firewalls, will help you understand the basics of how they operate so that you will better understand their function in the network. First, you will learn the specific functions of a stateful firewall: the TCP state table followed by Network Address Translation. Next, you will see how these two services operate on non-specific firewall, and then see it in action on a Cisco ASA 5512 firewall. Finally, you will watch how DMZs are used and how we get pings through a firewall. By the end of this course, you will understand that a firewall is not just a "magic box," but an essential part of a network, and you'll also know how to get the most use out of them.
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Course Syllabus
Course Overview- 1m 39s
—Course Overview 1m 39sIntroduction- 43m 33s
—Introduction 1m 40s
—Why Do We Need Firewalls? 4m 35s
—What Is the Firewall Doing? 5m 2s
—Vocabulary 2m 9s
—Desired Firewall Behavior and the TCP State Table 5m 13s
—Access Rules and Their Expected Behavior 4m 8s
—Demo: Examine Inside and Outside Networks 6m 20s
—Demo: Testing Connectivity and Examining the TCP State Table 7m 52s
—Demo: Examining Firewall Logs 1m 45s
—Demo: Configuring an Access Rule 3m 52s
—Summary 0m 53sNetwork Address Translation (NAT)- 44m 11sThe DMZ- 13m 6sNon-TCP Protocols- 9m 31sNext Generation Firewalls- 8m 34s