radwho doesn't work

Hi all, Systems: CentOs v5.3, FreeRadius-server-2.1.6 + Openldap ---------------------------------------------------------------------------------------------------- I d like to know who are logged on(uid, duration ...) so I did radwho but it said that the radutmp file is not found ... radwho: Error reading /usr/local/freeradius-server-2.1.6/var/log/radius/radutmp: No such file or directory Can anyone help me?I checked in the indicated directory and it was right (anyway, it's temporary file) Best regards! -- JJohnny RANDRIAMAMPIONONA Phone: +212663682554, +212533158575 National School of Applied Sciences ZIP 1818 TANGIER 90000 ---------Morocco ---------------