Clearpass IIRC uses freeradius. .. however that's just for the authentication. They've spent a lot of time/effort/money doing the certificate management stuff (there's are other solutions eg cloudpath ES).... but otherwise you need to basically look at other free CA tools or write your own. eduroam CAT is eg a free tool that can create profiles for your users to download onto their client devices... <br>
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alan<br>
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Sent from my Android device with K-9 Mail. Please excuse my brevity.