Making TCP/IP Work

Explore the complexities of making TCP/IP work with this course covering TCP and UDP, netstat, Wireshark and much more.


  • TCP and UDP Video — 00:07:22
    • In this episode, Mike discusses TCP (connection-based) and UDP (connectionless) protocols.

  • ICMP and IGMP Video — 00:06:08
    • In this episode, Mike explains the importance of two of the fundamental protocols used in the Internet Protocol Suite, ICMP and IGMP.

  • Handy Tools Video — 00:06:43
    • Explore the various tools that can get quick answers when troubleshooting a network latency issue.

  • Introduction to Wireshark Video — 00:10:37
    • In this episode, Mike goes through a captured data stream using the Wireshark tool.

  • Introduction to netstat Video — 00:08:49
    • In this episode, Mike demonstrates uses for the powerful netstat command.

  • Web Servers Video — 00:11:52
    • In this episode, Mike discusses Web servers and some of the requirements and protocols used.

  • FTP Video — 00:11:48
    • In this episode, Mike discusses the venerable file transfer protocol.

  • Email Servers and Clients Video — 00:09:28
    • In this must-see episode for all aspiring spammers out there, Mike explains the various protocols used in sending and receiving e-mail.

  • Securing Email Video — 00:05:47
    • Historically, securing email was a bit complicated. In this episode, Mike explains the various email protocols and the evolution to STARTTLS.

  • Telnet and SSH Video — 00:09:16
    • In this episode, Mike looks at the remote connection protocol called telnet, as well as methods for encrypting telnet connections via SSH.

  • Network Time Protocol Video — 00:01:59
    • In this brief episode, Mike reveals the secret importance of NTP.

  • Network Service Scenarios Video — 00:09:33
    • In this episode, Mike works though some known issues for network service problems.

  • Understanding DNS Video — 00:12:10
    • This episode begins an overview of the DNS system, which resolves domain names to IP addresses.

  • Applying DNS Video — 00:18:56
    • In this episode, Mike works with DNS and discusses the various record types that are available, what their purpose is, and how they can be used.

  • The HOSTs File Video — 00:03:45
    • Take a look back in time at the earliest method for resolving IP addresses: the HOSTS file.

  • Net Command Video — 00:08:12
    • In this episode, Mike explores the venerable and still very useful net command to show things such as user names, shared network resources, mapping network drives and more.

  • Windows Name Resolution Video — 00:11:22
    • In this episode, Mike looks at ways Windows machines figure out names of other computers on the network, through processes like NetBIOS and LLMNR.

  • Dynamic DNS Video — 00:05:25
    • In this episode, Mike explains how dynamic DNS works.

  • DNS Troubleshooting Video — 00:13:13
    • In this video, Mike shows you what to do if you suspect you’re having issues with DNS.


Course description

Understanding the nature of TCP/IP is important, but now you have to make it work. Dive deeper into the use of TCP/IP with this course covering TCP and UPD, web servers, FTP, netstat, securing email and much more. You’ll look at handy tools and even get t

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.

Associated NICE Work Roles

All Infosec training maps directly to the NICE Workforce Framework for Cybersecurity to guide you from beginner to expert across 52 Work Roles.

  • All-Source Analyst
  • Mission Assessment Specialist
  • Target Developer

You're in good company


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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Plans & pricing

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    $799 per license / year

    • Team administration and reporting
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    • 190+ role-guided learning paths and assessments (e.g., Incident Response)
    • 100s of hands-on labs in cloud-hosted cyber ranges
    • Create and assign custom learning paths
    • Custom certification practice exams (e.g., CISSP, CISA)
    • Optional upgrade: Guarantee team certification with live boot camps

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