Haven’t heard back from anyone on this issue, I know it’s been a while, but we’re still
seeing it, and it’s getting to be much more of an issue as we start migrating production
servers over to the AD domain.
How can we use multiple group policies to define security rights? Or do I need to do a
single group policy per server, which seems awful.
On May 29, 2018, at 12:18 PM, Max DiOrio <mdiorio(a)gmail.com>
wrote:
Attached are the logs. It seems that even after removing the GPO’s, it is still being
blocked from logging in.
From secure.
May 29 12:17:24 la-1potpap01 sshd[8292]: pam_sss(sshd:auth): authentication success;
logname= uid=0 euid=0 tty=ssh ruser= rhost=10.85.144.87 user=a-mdiorio
May 29 12:17:25 la-1potpap01 sshd[8292]: pam_sss(sshd:account): Access denied for user
a-mdiorio: 4 (System error)
May 29 12:17:25 la-1potpap01 sshd[8292]: Failed password for a-mdiorio from 10.85.144.87
port 60267 ssh2
May 29 12:17:25 la-1potpap01 sshd[8292]: fatal: Access denied for user a-mdiorio by PAM
account configuration [preauth]
<Archive.zip>
> On May 28, 2018, at 6:49 AM, Michal Židek <mzidek(a)redhat.com> wrote:
>
> Hi!
>
> From your description the setup should work. Can you send full (sanitized) logs?
Mostly the domain and gpo_child logs are interesting
> here, but for simplicity you can send all logs:
> - stop sssd
> - remove cached files in:
> rm -r /var/lib/sss/gpo_cache/*
> rm -r /var/lib/sss/db/*
> - set debug_level in domain section in /etc/sssd/sssd.conf to 10
> - reproduce issue
> - send logs from /var/log/sssd/
>
> Additional questions:
> - if you remove the single computer policy, does the "generic" policy
> apply as expected to the affected computer in question?
>
> Michal
>
> On 05/25/2018 08:58 PM, Max DiOrio wrote:
>> Hi!
>> So it seems that I’m having an issue with GPO processing. I have an OU
(Servers/Infrastructure) that contains a few servers. In this OU, I have a few GPO’s
applied.
>> Once is “generic” that should applied to every server in this OU - which allows
Remote Interactive Login and Logon Locally to Domain Admins.
>> I also have a GPO that applies to a specific server in this out that grants
access to a service account to log on to terminal services and log on as a service. For
this GPO, I have a security filter to the specific computer object it is supposed to apply
to - and I think this is the root of my issue.
>> The GPOs are listed
>> 1) Infrastructure servers Access Control (that should apply to them all)
>> 2) Single Computer policy for service account
>> When looking at the sssd_domain logs, I can see that it’s processing both GPO’s,
but only adding the account from policy 2 to the ad_gpo_access_check, meaning domain
admins can’t log in to either server, only the service account can to both of them.
>> So we have multiple issues:
>> 1) It’s not combining the GPO access policies, but only taking the last one
found
>> 2) It’s not abiding by the Security Filtering on the GPO
>> So in my case - how would I go about making this work? Would I need a separate
GPO for each server I want to apply individual rights to and explicitly include the domain
admins group in it, then using delegation allow the single computer read and deny read of
every other computer?
>> Seems like this also means you can’t do GPO inheritance if it only takes the last
found GPO and ignores the settings configured in previous GPO’s it checked.
>> Any ideas?
>> Thanks!
>> Max
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