linux user and new to hacking/security

Hi, I'm somewhat new to Antionline and am running only Linux on my home PC. I'm majoring in Telecom where I hope I'm not stuck with some PBX, but rather managing a network with the majority being Linux boxes.

Anyhow, feel free to say hi. I want to learn what I can as far as security goes, and am curious about what it takes to become a whitehat hacker. I don't know yet if I'll have the time to learn, but at least I'd like to learn how to keep a home network secure.

-Linuxalien