[Beowulf] One time passwords and two factor authentication for aHPC setup (might be offtopic? )

[Hearns, John]

for us. Are there any good open source alternatives? The actual
time-seeded random-number generation key fobs seem pretty cheap (less
than $20 a piece e.g. http://www.yubico.com/products/yubikey/ ). 


the back-end for cards like these is a Radius server (if I'm not wrong -
last time I looked at stuff like this was a frighteningly long time
ago).
Look for Openradius.




I looked around at open source but couldn't find much. Are other
sys-admins using some form of OTP. What options do I have?

I opie any use to you?
http://wiki.linuxquestions.org/wiki/Opie

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