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[QUESTION] challenge-response OK but Authentication failure
https://forum.yubico.com/viewtopic.php?f=16&t=1421
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Author:  wehe [ Tue Jul 08, 2014 6:49 am ]
Post subject:  [QUESTION] challenge-response OK but Authentication failure

I am trying to establish PAM login with challenge-response and YubiKey on my Linux system following this guide http://opensource.yubico.com/yubico-pam/doc/LocalAuthenticationUsingChallengeResponse.html. I have added debug option and get the message:

Challenge-response success!

But I still can not login as /var/log/auth.log shows:

Code:
$su ALICE
/var/log/auth.log
Jul  7 23:05:01 debian su[11539]: Challenge response failed: No such file or directory
Jul  7 23:05:08 debian su[11539]: pam_authenticate: Authentication failure
Jul  7 23:05:08 debian su[11539]: FAILED su for ALICE by BOB
Jul  7 23:05:08 debian su[11539]: - /dev/pts/5 BOB:ALICE


Thank you

Werner

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