I am currently working in SQL support (no much technical,just simple queries execution) and i have 5 Yrs of experience in this domain.
I am planning to change my career to different domain , so i prefered Ethical hacking and i have decided to do CEH exam in couple of months. I do not have relevant experience in networking/ windows/Linux domain, except that i know the basic networking concepts. I am going to join in authorized EC-Council training center. Before that i am thinking to learn the Prerequisites for CEHexam. So please advise me, what are all the knowledge i need to have before i get into CEH study?