1. I need to limit the user monthly usage, for example bandwidth 2Mbps with 5GB monthly usage.1a.) You would not need script, you need "RLM SQLCOUNTER" to limit daily/weekly/monthly traffic quota
1b.) you need to control the bandwidth using radius and radius client attributes, such as WISPr-Bandwidth-Max-Down; WISPr-Bandwidth-Max-Up
Thanks
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