We found out it has to do with GPO.  With

ad_gpo_access_control = enforcing


we get failures (system error 4 with no indication in the logs it was GPO in any way).


ad_gpo_access_control = permissive


and all is well.  I’ll open a ticket with Canonical.




From: Andreas Hasenack [mailto:andreas@canonical.com]
Sent: Monday, December 18, 2017 2:48 PM
To: End-user discussions about the System Security Services Daemon <sssd-users@lists.fedorahosted.org>
Subject: [SSSD-users] Re: Ubuntu Xenial failures


EXTERNAL MAIL: sssd-users-bounces@lists.fedorahosted.org

You should file a bug in Ubuntu, specially if downgrading to the previous package fixes the problem for you.


On Dec 18, 2017 18:10, "Jay McCanta" <J.McCanta@f5.com> wrote:

After an update to Ubuntu Xenial, sssd_pam always fails with a system error(4) error.

Dec 18 20:07:22 sv5cismfgcr01 sshd[27263]: pam_sss(sshd:auth): authentication success; logname= uid=0 euid=0 tty=ssh ruser= rhost= user=mccanta
Dec 18 20:07:22 sv5cismfgcr01 sshd[27263]: pam_sss(sshd:account): Access denied for user mccanta: 4 (System error)

I have debug_level 10 logs I can send.  Didn't want to post thos to the mailing list.


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