Limit Number of Authentication Attempt

[fvt3]

Hi,

I have clients constantly trying to authenticate off
of freeradius after being rejected.  How do I set
freeradius to deny or timeout a user from
authenticating after three attempts?  This is
authenticating off mysql database .  I am not exactly
sure if the change is in sql.conf or radiusd.conf. 
Thanks in advance...

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