Just enter 127.0.0.1 as radius server, and the result of the command I gave you as shared secret (or you can find the secret key in /etc/raddb/clients.conf in the existing localhost section----
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Just enter 127.0.0.1 as radius server, and the result of the command I gave you as shared secret (or you can find the secret key in /etc/raddb/clients.conf in the existing localhost section