[38870] in Kerberos
RE: kinit failing when AD user joining using smaercard PIN on ubuntu
daemon@ATHENA.MIT.EDU (Pal, Vikram)
Tue Mar 2 11:08:19 2021
From: "Pal, Vikram" <Vikram.Yadav@dell.com>
To: Ken Hornstein <kenh@cmf.nrl.navy.mil>
Date: Tue, 2 Mar 2021 08:35:48 +0000
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Hello Ken,
I tried again according to your suggestion but I'm not getting any logging info in =/tmp/kinit.log
Am I missing something here?
Regards,
Vikram
-----Original Message-----
From: Ken Hornstein <kenh@cmf.nrl.navy.mil>
Sent: Tuesday, March 2, 2021 1:10 AM
To: Pal, Vikram
Cc: kerberos@mit.edu
Subject: Re: kinit failing when AD user joining using smaercard PIN on ubuntu 20.04
[EXTERNAL EMAIL]
>We are login to Ubuntu 20.04 device using smartcard PIN. We are able to
>login as AD user successfully. We are using Windows 2019 AD Server.
So, I don't know what this means. I suspect that Kerberos isn't working correctly here and you'll falling back to something else.
>We tried kinit manually but it's throwing error. It asks for PIN but
>immediately asks for password without waiting for pin to be entered.
So ... there are a LOT of ways for PKINIT to go wrong (that's the protocol you use when using a smartcard), especially when a PKCS#11 module is involved, and some of the failure modes end up causing weird things to happen (and many of them cause fallbacks to a password prompt). But I'm not sure why you're running "sudo kinit [...]"; shouldn't you just run kinit without sudo? I am wondering if sudo is causing the PIN prompt and kinit is giving your the password prompt.
My suggestion is to run kinit again with the environment variable KRB5_TRACE set to point to a debug file. E.g:
env KRB5_TRACE=/tmp/kinit.log kinit [extra kinit options here]
That might point you to what is going wrong.
--Ken
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