On Wed, Aug 27, 2014 at 1:03 PM, Alpha Stevens <alpha.stevens at gmail.com> wrote: > sorry I miss a word working, I have enabled the PAM authorization module var > freeradius, but it just authorize the user Login action but did not analyse > the up&down bandwidth usage, can any other PAM module provide this function? Ok I understand your confusion now :) PAM doesn't and unfortunately can't do this type of accounting. That has to be done by you using the up/down scripts. The only accounting that can be done by PAM, is to keep track of the time the session was open. regards, Nikos