On 03/01/2012 02:04 PM, Jan Zelený wrote:
On 03/01/2012 12:21 PM, Ondrej Valousek wrote:
Hello,

I am running sssd on RHEL-6 with AD and recently found out, that I can no
longer authenticate via ssh. The message is:
pam_krb5[27045]: TGT failed verification using keytab and key for
'nfs/draco.prague.s3group.com@DUBLIN.AD.S3GROUP.COM': Wrong principal in
request

My krb5.keytab file has been created using Samba with "net ads join".
I can still run 'kinit <username>' to obtain a TGT.

Does anyone know what is going on here? Why is sshd verifying the TGT via
just the nfs/ service principal?

Sorry for a bit off-topic question, but I hoped someone in this list
might point me in the right direction.

Ondrej
Note that with:
kinit -S nfs/draco.prague.s3group.com@DUBLIN.AD.S3GROUP.COM ondrejv

I am able to successfully obtain the nfs/ principal - so it looks like a
bug in pam_krb5, right?
You should also try kinit -k to see if kinit with the keytab is ok.

Thanks
Jan
kinit -k -S nfs/draco.prague.s3group.com@DUBLIN.AD.S3GROUP.COM draco$
works fine, too.

So I am probably going to file a bugreport, right?

Ondrej