On (30/06/16 15:38), Sumit Bose wrote:
>On Wed, Jun 29, 2016 at 09:04:47AM +0000, tstorai....@orange.com wrote:
>> Hello,
>> We are using FreeIPAv3 with SSSD with Hortonworks Cluster :
>> -          ipa-admintools-3.0.0-47
>> -          ipa-client-3.0.0-47
>> -          sssd-ipa-1.11.6-30
>> According with the following documentation, our users are automatically 
>> authenticated to Kerberos at every login :
>> https://www.freeipa.org/page/Kerberos
>> "When SSSD project is used, the ticket is get for a user automatically as he 
>> authenticates to client machine."
>> It's working pretty well but some of our users are using nominative accounts 
>> for ssh connection then access to Hadoop with an applicative keytab...
>> We are agreed than we have to perform a kinit at every connection but when 
>> theses users work on several sessions they lose the applicative account 
>> ticket :(
>If you use credential cache collections (type DIR: or KEYTAB:) SSSD
According to versions of sssd, it looks like el6.
And KEYRING collection ccache is not on el6.
I'm not sure about DIR collection ccache.

>would only update the individual cache matching the user principal
>stored in IPA. The caches for other principals would persist. But if the
>principal in the applicative keytab is from the same Kerberos realm you
>still might need to use the 'kswitch' command to set the primary
>principal. But it should be sufficient to call it only once because the
>information is stored in the collection and not overwritten by SSSD.
>If this does not work the affected users can add something like:
>    export KRB5CCNAME=$HOME/my_cc_cache
                    Is FILE: considered as default or it need to be
                    written as well for KRB5CCNAME

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