Use limits.

[lylos]

I don't know if this is possible, but I would like to put usage limits on certain user names. Seeing as how people on my house stay on the computer all the time, I would like to find a way to have it to where they can only have like 5 hours a day and then they wouldn't be able to log in again, is there any way for me to do this on Fedora?

Thank you,
Lylos

[ilja]

I must admit, this is a great question. I found this :
http://www.gnu.org/software/acct/manual/html_chapter/accounting_toc.html
here : http://mailman.plug.org/pipermail/pluglist/2004-July/008842.html

[lylos]

So, from the usage of this command, there could be a way to run a script at login to check to see if ac > X hours, and if so, log them out and display a message saying they have been logged in too long for the day. I think, too bad I don't know crap about scripting and all of that good stuff.

~Lylos

[ilja]

I hope this is a help: http://www.archlug.org/kwiki/ParentalControls