Beej's Guide to Network Programming

This was an absolute lifesaver when I was thrown into the deep end writing a high-performance TCP server from scratch. I think it's so effective because it's "highly opinionated", which is to say, he points out "Foo does this, but don't use it because that's just silly" or "don't use bar, use baz instead because it handles qux more easily" and so on.

I learned from this in 2006-2007.

Wow, I am glad that this is still around - the first tutorial that I learned socket and network programming back in 2004.

Like others, this is how i learned to do it too. The C programming guide is very good too

This was the go-to guide back in its times. Circa 2006?