I want to take good pictures during Rock concerts in low lighting what is the best way to take such pictures?

I have a Nikon D50 Digital SLR camera. Any suggestions about f stop settings, shutter speed etc would be most appreciated.

IF you have the regular kit lens, there's not really much you can do but use "P" mode and spot metering (direct it as you focus on the faces of the performer) and jack up your ISO to the most you can get, and hope for the best. You'd really have to use a faster lens (f/2.8) to really use a lower ISO and avoid "noise;" do not use a slower shutter speed than 1/60th or you will surely get blurred images from the movement of the subjects and from camera shake. It's not a bad camera; it's just the nature of the lens you have and the limitations thereof. IF they stage has colored lights, expect the images to have the lighting effect. Get a white light reading before you do anything. Good luck and very best wishes.

The faster the lens the better. Use your lowest f/stop obviously. You are going to want to bump up your iso but if you go too high with that you are gonna get a lot of grainy noise. You're best bet would be to use a tripod but most concerts wont allow that. If you have a steady hand you can slow down your shutter speed as well as lower your f stop. that would be the best but if you are unsteady at all, you will have a lot of movement in your pics.
Good luck!

that's tricky...a tripod would help if your subjects would hold stll. since it's a rock concert, that would be doubtful.

use the lowest f number you could. if you don't mind grainy pics, use a higher iso setting too so that you could use a faster shutter speed.