[Cialug] two factor ssh auth

[Barry Von Ahsen]

is anyone doing two factor ssh auth?  I started looking at ssh key + 
pass and found monkeysphere[1], I also found wikid[2], freeradius and 
duo_unix[3].

any suggestions or gotchas?  free or low cost is best.  also, 
unfortunately, end users are all windows based


-barry

[1] http://web.monkeysphere.info/why/#index2h2
[2] http://www.wikidsystems.com/
[3] 
http://blog.duosecurity.com/2011/04/announcing-duos-two-factor-authentication-for-unix/