Protecting Networks


  • Security Concepts Video — 00:05:57
    • In this episode, Joe goes over the general types of security threats to a network.

  • Firewalls Video — 00:10:03
    • Mike shows us how to keep bad guys from getting into your network from the outside.

  • Demilitarized Zone (DMZ) Video — 00:05:21
    • Mike shows us techniques to use and configure firewalls.

  • Physical Security Video — 00:12:34
    • In this episode, Joe explores preventative controls, such as guards and fences.

  • Social Engineering Video — 00:07:39
    • In this episode, Joe explores social engineering attacks such as dumpster diving, shoulder surfing, and phishing.

  • System Life Cycle Video — 00:04:29
    • Joe reviews the methods for disposing of old equipment.

  • Password Attacks Video — 00:06:24
    • In this episode, Joe dives into the various types of password attacks.

  • Denial of Service (DoS) Video — 00:09:53
    • In this episode, Joe goes over a Denial-of-Service attack.

  • Defense in Depth Video — 00:05:17
    • Delving further into protecting your network, Joe explains some methods to protect against the bad guys.

  • Introduction to Firewalls Video — 00:04:22
    • In this episode, Mike shows attacks where bad actors function between encrypting hosts.

  • Network Hardening Video — 00:08:01
    • Joe reviews some other types of exploits and how to harden devices to protect against them.

  • Common Vulnerabilities Video — 00:03:12
    • In this episode, Joe sheds light on common vulnerabilities and exposures as well as zero-day.

  • Malware Video — 00:06:12
    • In this episode, Joe talks about types of malware and what they do.

  • VLAN Hopping Video — 00:06:10
    • Joe reviews some other types of exploits and how to harden devices to protect against them.

  • On-Path and Spoofing Attacks Video — 00:22:31
    • In this episode, Joe explains the man-in-the-middle attack or more commonly known as an on-path attack​.

  • Rogue DHCP Servers Video — 00:03:51
    • The lone rogue DHCP server can be a real nuisance. Joe talks about what it is and how to stop it.


Course description

Meet the author

Mike Meyers, affectionately called the “Alpha Geek,” is the industry’s leading authority on CompTIA certifications. He is the president and co-founder of Total Seminars, LLC, a provider of PC and network repair seminars, books, videos and courseware for thousands of organizations throughout the world. Mike has been involved in the computer and network repair industry since 1987 as a technician, instructor, author, consultant and speaker. He has sold over a million IT and certification books, including the best-selling CompTIA A+ Certification All-in-One Exam Guide and CompTIA Network+ Certification All-in-One Exam Guide. He has personally taught thousands of students, including U.S. senators, U.S. Supreme Court Justices, members of the United Nation, every branch of the U.S. Armed Forces, many branches of the Department of Justice, hundreds of corporate clients and academic students at every level.

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We use Infosec Skills to provide continuous training to our technicians and to prepare them for various certifications. Infosec Skills allows us to create personalized training programs that focus on each of our technicians’ particular roles and see their progress as they take courses. We also, recommend it to clients to make their IT support teams better.

Caleb Yankus


This has been utilized to bridge the skills gap across our cyber team and to aid them as they prepare for their various certifications. It also has provided a nice learning foundation for our various cyber team members to utilize as we continue to find ways for cross-utilization with operations while minimizing the downtime needed to ensure everyone’s knowledge is the same.

Daniel Simpson


We use Infosec Skills to provide base level knowledge for employees. We also use the services to provide in depth learning for employees as they encounter new technologies. If an employee is is assigned to a new project, we can rely on Infosec Skills to provide a rapid concentrated learning environment. This rapid concentrated learning positions our employees for success.

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