Hi, I am receiving accounting messages from the network and storing them to the radacct table. Currently in order to filter I have changed the INSERT/UPDATE commands with a where statement to only insert rows for subscribers I am managing. This is working fine but as my network grows it is creating a lot of overhead to execute SQL commands that don’t do anything and so I am trying to move the filtering to the FreeRADIUS code. I have added the preacct to the attr_filter file: attr_filter attr_filter.preacct { key = "%{User-Name}" filename = ${modconfdir}/${.:name}/preacct } And have this preacct file to try and currently filter only 1 number from being inserted to the DB. # # Configuration file for the rlm_attr_filter module. # Please see rlm_attr_filter(5) manpage for more information. # # # This configuration file is used to remove almost all of the attributes # From an Accounting-Response message. The RFC's say that an # Accounting-Response packet can contain only a few attributes. # We enforce that here. # DEFAULT Vendor-Specific =* ANY, Message-Authenticator =* ANY, Error-Cause =* ANY, Proxy-State =* ANY, Calling-Station-Id == ‘XXXXXXXX' However it seems that the filter is being ignored and all lines are inserted to the DB. Can you please assist in understanding why it isn’t filtering? In addition if I have a list of about 100K subscribers that I do want to store their accounting data to the DB is there a way to manage this list without adding it 1 by 1 to the filter file? I am running Freeradius 3.0.13 with PostgreSQL. Thanks Liran Kessel