[Wylug-help] Guest account for Linux??

[Emon]

Hi all

I am running Slackware10.2 with KDE desktop on a home PC. I was 
wondering how to setup a guest account with limited permissions & stuffs 
like that.

Do I have to create a new account with the login name 'guest' & no 
password??

I thought there was a especial limited user (by default) called 'nobody' 
& a especial limited group (by default) called 'nogroup'...... is there 
any to use them as guest account?? if so how?? especially in KDE??

OR is there some other way do things??

Please let me know

Thanks
Emon