Cisco’s CCNA exam, I think, covers a lot of ground. Although, homelab specific knowlegde, is best gained by building stuff and getting your hands dirty, so to speak, in my opinion.

I mean, there’s literal full step by step guides on youtube on how to start hosting and exposing services locally on a home server to the world, just look for “how to self host” or “home server guide” and you can learn alot of the basics that way. You don’t really need to learn all of networking, unless you want to.

Anyone looking for a lightweight self hosted alternative to discord might want to check out sharkord. Its less about large communities and more about a private space to chat with friends, that you have complete privacy and control with.

yeah, my kid has already figured out that live commenting on powerpoint slides with their classmates is basically instant messaging