publications - Duties of a shepherd in a CS conference

I reviewed a paper, which was then accepted as "presentation-only" with a possibility to submit a revised version to be re-reviewed. Upon acceptance, I was asked to be a shepherd for the paper.

1. What are the typical duties of a shepherd?


2. Which duties might seem shepherd's duties, but, in fact, are not?


3. Does the shepherd get any academic credit?


4. Do paper authors get to know the shepherd's name?

EDIT: This question is partially (i.e., not fully) covered by Thanking a "shepherd" in acknowledgments. Here, we ask for a more detailed, canonical description. In particular, feel free to add more items to this question by means of editing.