Ask HN: How does one get certified as an ETHICAL hacker ?

   I am a fresh graduate and not much of a programmer.
 I love the Unix environment though and have been hacking 

around with the likes of Solaris and Ubuntu poring over the plethora of documentations available. I seek to attain a certification in say Solaris 10 and also probably Red hat which is more commercial. But I have come across these ethical hacking certifications which I found to be rather expensive. But I need fellow hacker opinions on how I should go about these certifications. Are these legit and do they have placements ? I intend to make a career in network security. Please advice