Redhat Enterprise Linux 5.10 (No we can't upgrade, please don't ask.)I have a user, 'tina' who is logged into the system. I need her and user 'lu' to use chmod, chgrp, and chown commands for certain reasons (no they don't know enough to be a security risk, we have daily backups anyway). At first I used sudo nedit /etc/sudoers to edit the file. Whereon I added this line: tina,lu ALL=/bin/chmod /bin/chown /bin/chgrpThen I found I have to use the visudo command, which I did, and I saved the file without edits.So I went to test her use of chgrp and I got an error like Does not have permission to use this command. If I change sudoers do the users need to log off unix shell windows and logon again? The man pages didn't say nor did any pages on Google. Do I have to restart the server? 
Does user have to logoff then back on if I change /etc/sudoers?
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