I find it really convenient to run the same OS on my laptop, as on the servers I administrate. Others probably feel the same, and I suspect that was the GP's p

I find it really convenient to run the same OS on my laptop, as on the servers I administrate. Others probably feel the same, and I suspect that was the GP's point as well. :) Also, almost nobody care about Unix certification. Linux isn't certified, and except for really niche things, Linux is all that matters (if you aren't running Windows).