Practical Networking .net

Networking Fundamentals: How data moves through the Internet

I started recording a new video series covering How Data moves through the Internet. The intent of this first set of videos is to serve as the first Module of a new course I’m developing discussing Networking Fundamentals.

The full course will give anyone looking to start a career in Networking the foundation they need to pass job interviews and become successful engineers.

Moreover, this course will also give anyone in any sort of IT role insight into whatever it is “the networking folks” are doing every day. This type of cross-discipline training will propel you further in whatever Tech career you are pursuing.

How Data moves through the Internet

Module 1 of this course will be available for free to everyone on YouTube and will teach anyone the very core of Networking: How Data moves through the Internet.

The individual videos for Module 1 are available here:

Videos are in still in development.
This post will be updated as new videos are released

Networking Fundamentals – Course Outline

Below is the outline for the full Networking Fundamentals course. Keep in mind, the topics are still being scoped, so this outline is subject to change.

  • Module 1 – How Data moves through the Internet
  • Module 2 – IP Addresses and Subnetting
  • Module 3 – Host Configuration and Verification
    • Windows
    • Linux
    • Windows Server
  • Module 4 – TCP and UDP
  • Module 5 – VLANs
  • Module 6 – NAT
  • Module 7 – Address Resolution Protocol
  • Module 8 – Troubleshooting Tools
    • Ping
    • Traceroute
    • TCP Traceroute
    • MTR
    • PathPing
    • iperf
    • Netstat
    • Nmap
    • Wireshark
    • TCP Dump
  • Module 9 – Network Protocols
    • DHCP
    • DNS
    • HTTP
    • HTTPS / SSL / TLS
    • SSH
    • SCP
    • FTP
    • STP
  • Module 10 – IPv6
  • Module 11 – Network Designs
  • Module 12 – Cloud Networking

When complete, this course will be the “must watch” course for anyone looking to get into Networking or understand how Networking works.

Got a suggestion for a topic that would contribute to this goal? Suggest it in the comments below!


  1. Ludlow Thompson says

    Spanning Tree. Command Line frequently used commands and interpretation of their responses. Subnetting and network design considerations. Configuring tiers of user access of network devices.

  2. audio is not working properly. plz check

  3. I want more information about internet…. Please send me through e mail

  4. Steven Cloutier says

    Hello Ed,

    Just wanted to says that I highly appreciate what you do. It has helped me understand so much about networking and how it really works behind the scenes,


  5. Great information presented in clear and meaningful fashion.
    Much appreciated and please keep up the good work!

  6. Hello Ed,

    thanks a lot for your explanations and posted videos, helped me a lot with better understanding of networking processes! Is there maybe a possibility to include VRRP and BFD courses?


    • Yes. I like both of those suggestion. Thanks Marin! VRRP (and HSRP / GLBP) will be in the Network Designs module. BFD… I’m not sure where I’m going to put it. But I’ll think on it. Thanks for the suggestions!

      Glad the videos have helped you =)

  7. I think it would be great to know better on how routers build their address table.
    I know there are different protocols for that, with “costs” considerations, hops etc..
    A video about all of this material will be really great

    p.s. found your website thanks to a YouTube suggestion of one of your videos, I really like you work

    • Hi Eli. Yep, definitely! The next lesson in the series will discuss Routers and how they work. Just like the last (2-part) lesson discussed Switches. I’m hoping to get more time to dedicate to completing this first module.

      Thanks for the kind words. Glad you enjoy the content!

  8. I saw you have a module about Cloud networking, will you talk about tunneling?
    And why we need them?
    e.g. VXLAN?
    I still couldn’t understand what exactly the problem VXLAN helps us with..

    • Tunneling I might talk about in the Protocols module. Or possibly I might make a new module to discuss tunneling, and then go into the basics of the common tunnels that exist (GRE, IPsec, SSLvpn, VXLan, etc). That is a good suggestion.

      VXLan lets you extend a layer 2 network across layer 3 boundaries. So, just like a Trunk/Tagged port lets you extend a VLAN across multiple switches, VXLAN lets you extend a VLAN across multiple routers. Hope that helps =)

  9. Perhaps you could cover :
    1) VPN (increasingly more people use this for corporate work from home)
    2) Different types of last mile connectivity
    3) Redundancy models in different parts of the network
    4) A couple of concrete case studies to drive home some points
    like the role of networks in supporting globe scale apps like whatsapp/twitter etc.

    • While these are great suggestions, I’m wondering if they go a little beyond the “fundamentals” of networking. The target of this course would be a solid/competent network admin or systems admin, not necessarily someone designing large scale networks.

      VPNs certainly will be covered. And some of “redundancy models”, but the rest might be a little too niche for this course.

      Thank you for the suggestions either way, though =)

  10. Please, You can send me a slides of series networking fundamentals.
    Thanks you.

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