Limit Number of Authentication Attempt

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... __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com