Here I am !! Back with my guide on How to Set up Distribution Point in SCCM 2012 . Below screen shots will help you understand the concept and how to set up a DP .
One important thing is with regards the accounts being used for DP creation , I will take this part once we reach there .
This is am Important part , it is better to remain this option as default account if you are installing the DP on the SCCM Server .