Today I configured BIND from scratch and I realize that my knowledge on something as basic as DNS was a little too superficial. I tend to be perfectionist with the things related to my career but I will never master everything I like so I have to pick one of the many things in the list and try to make deep understanding on it.
What should I specialize in? I don’t know yet and I will delay the answer to avoid losing focus. In the meantime, I’ll keep posting and eventually the right answer will show itself, hopefully soon :D.