Thanks Alan, I updated the config and removed 'unix' module from accounting section and seems its working the way I was expecting. Thanks & Regards, Nitin Sharma On 01/08/19, 5:09 PM, "Alan DeKok" <aland@deployingradius.com> wrote: On Aug 1, 2019, at 7:36 AM, Sharma, Nitin via Freeradius-Users <freeradius-users@lists.freeradius.org> wrote: > I can see below while running radius in debug mode. Not sure if that’s the case. > > ``` > # Loading module "unix" from file /etc/raddb/mods-enabled/unix > unix { > radwtmp = "NULL" > } > ``` Yes, that's the problem. Someone edited the default configuration and broke it. Don't do that. If you want to disable logging to radwtmp, just delete the "unix" module from the precct / accounting sections. Alan DeKok.