I tried to study a bit from beej.us and I appreciated the style of teaching, but ultimately thought it wasn’t for me as it didn’t go much into depth and focused more on creating C programs. Is there some source from where I can learn in a comprehensive yet easy to understand manner the fundamentals of computer networking, at least to the extent that is relevant for selfhosting?


If books are more to the OP’s liking, some that I’ve read that I’ve found useful:
ETA: One more. This is more of a start to finish kind of course but networking is definetly covered. Takes you from day one with your linux distro and a blank slate, all the way to scripting, all in easily digestible chapters: https://linuxupskillchallenge.org/
Oh my. That Linux Upskill Challenge resource is right up my alley. Thank you for sharing.
Happy to share. Came across it in my internet travels and bookmarked it thinking, maybe some could use it.