commands "w" "who" & "finger"

[Lowell Gilbert]

"Dixit, Viraj" <Viraj.Dixit at CityofPaloAlto.org> writes:

> Anyone got an idea why any of these commands "w" "who" & "finger" do
> not show who is logged in. I am logged in as a super user and shows
> no one logged in. The commands used to work few days ago now
> nothing. Thanks for the help.

Did you change anything?
How are the various users logged in?  Via ssh?  On the console?  xterms?