Please describe, in detail, exactly what you are trying to do, and exactly, step by step, what you have so-far done or attempted to do.
When you say, "establish ssh trusted hosts," please cite a web-page that refers specifically to what you are talking about when you use that phrase.
When you try it as a non-root user and "encounter a roadblock," please detail exactly what message you get, and why you come to the conclusion that it is an insurmountable obstacle.
As you can see from my italics, "the devil is in the details" for providing the most-useful answer to your question.
Last edited by sundialsvcs; 09-10-2011 at 09:08 AM.