Thanks Alan and Stefan at first. I've studied linelog before and tried to figure it out how to output complete auth/acct content in the format I want by it. However I'm not sure if linelog can records multiple lines of records at one time. Because I need to output this log file just almost the same with detail.logIt seems it can only read one "reference" in single linelog module, right? Or I can reach my goal by implement several instances of linelog responding multiple attributes in auth/acct requests? --Below is the example-- reference = "%{%{Packet-Type}:-format}" Access-Request =="Packet-Type: AR"Access-Reject =="Packet-Type: AJ"Access-Accept =="Packet-Type: AA"Access-Challenge =="Packet-Type: AC"--- It can output the first column "Packet-Type" of my customized authlog correctly, but what if I need to output other columns in the same file? Another question, how to use "tab" as delimiter to separate values in linelog file? I am new in FreeRadius, big thanks for all kindly reply of you guys! Best Regards, Okis From: A.L.M.Buxey@lboro.ac.uk To: okischuang@outlook.com; freeradius-users@lists.freeradius.org Subject: Re: customized format of log file Date: Fri, 12 Oct 2012 06:32:24 +0000 Look at the linelog module and be thankful for having the ability to do such things with Freeradius...what would you do if you only had eg NPS? alan -- This smartphone uses free WiFi around the world with eduroam, now that's what I call smart.