> the other problem is what i am using radwho and it's empty, > because the file /usr/local/var/log/radius/radutmp is empty. > > how i can fix that in order to run radwho.
Is your NAS sending an accounting package with Acct-Status-Type set to Start? - List info/subscribe/unsubscribe? See http://www.freeradius.org/list/users.html
