Thanks Alexander that was it. 

On Wed, Feb 14, 2018 at 6:06 AM, Alexander Bokovoy <abokovoy@redhat.com> wrote:
On ke, 14 helmi 2018, Alexandre Pitre via FreeIPA-users wrote:
Earlier this week, users reported they could no longer ssh to freeipa
joined servers using their AD login. After some inverstigation, it was
discovered if krb5_validate was set to false in the sssd.conf, AD ssh login
would start working again.

One of our IPA server is showing these errors in /var/log/messages:

Feb 13 20:53:28 ipaserver ns-slapd: [13/Feb/2018:20:53:28.823685558 +0000]
- ERR - is_allowed_to_access_attr - [file ipa_pwd_extop.c, line 786]:
slapi_access_allowed does not allow READ to ipaProtectedOperation;read_keys!
Feb 13 20:53:28 ipaserver ns-slapd: [13/Feb/2018:20:53:28.826357278 +0000]
- ERR - ipapwd_getkeytab - [file ipa_pwd_extop.c, line 1646]: Not allowed
to retrieve keytab on [IPA$@DOMAIN.COM] as user [fqdn=
ipaserver.ipa.domain.com,cn=computers,cn=accounts,dc=ipa,dc=domain,dc=com]!
Feb 13 20:53:28 ipaserver sssd: Failed to parse result: Insufficient access
rights
Feb 13 20:53:28 ipaserver sssd: Failed to get keytab

I could paste the the debug logs from sssd but I'm pretty sure that error
in /var/log/messages is the root cause preventing AD ssh login. I did some
research and couldn't find anything revelant.

Any ideas how to fix this ?
It looks like ipaserver.ipa.domain.com is not a trust agent. Remember
that only trust agents and trust controllers can retrieve trusted domain
object credentials to communicate to AD DCs.

--
/ Alexander Bokovoy



--
Alexandre Pitre
alexandre.pitre@gmail.com