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Secure Network Design

Lean the basics of designing secure networks, from an overview of network topologies to foundational security concepts such as segmentation and isolation.

3 videos  //  15 minutes of training

Course description

This course covers the following network security topics: network security devices and placement, network topologies and security zones, and network segregation, segmentation and isolation. It briefly introduces a wide variety of security device types, from sensors to firewalls and load balancers. The terms intranet, extranet and demilitarized zone (DMZ) are defined and explained, along with the concepts of Network Address Translation (NAT) and honeynets. The segregation/segmentation/isolation part of the course provides a basic understanding of physical and logical separation and explains the VPN tunneling mechanism.

Course syllabus

Zones and TopologiesDuration: 3:24

Segregation, Segmentation and IsolationDuration: 3:49

Security Devices and PlacementDuration: 7:30

Meet the author



At Infosec, we believe knowledge is the most powerful tool in the fight against cybercrime. We help IT and security professionals advance their careers with a full regimen of certification and skills training. We also empower all employees with security awareness training to stay cybersecure at work and home. Driven by smart people wanting to do good, Infosec educates entire organizations on how to defend themselves from cybercrime. That’s what we do every day — equipping everyone with the latest security skills so the good guys win.

You're in good company

"Comparing Infosec to other vendors is like comparing apples to oranges. My instructor was hands-down the best I’ve had." 

James Coyle

FireEye, Inc.

"I knew Infosec could tell me what to expect on the exam and what topics to focus on most."

Julian Tang

Chief Information Officer

"I’ve taken five boot camps with Infosec and all my instructors have been great."

Jeffrey Coa

Information Security Systems Officer

Plans and pricing





$599 / license

Annually. Includes all content plus team admin and reporting.