Hello, I noticed some of our users having linux authentication issues recently. Upon further digging it happened when a GPO was applied to the same OU these linux servers belonged to. The debug logs said there was an error due to a missing equal sign. I tracked down the policy and looked at the ini file and instantly noticed it differed from the normal format.

Many of our GPOs are in the format of:
[section]
key=value

But this one was like:
saltminion",2,"D:AR(A;;CCLCSWLOCRRC;;;AU(A;;CCDCLCSWRPWPDTLOCRSDRCWDWO;;;SY(A;;CCDCLCSWRPWPDTLOCRSDRCWDWO;;;LA)(A;;CCLCSWL

The result was that access was denied to the user logging into the server. 

Questions:
1.) Should SSSD be able to parse GPOs using the template of Microsofts SDDL (Security Descriptor Definition Language) ? 
2.) What options are available to restore access besides removing the GPO from the OU, or setting  ad_gpo_access_control to disabled or permissive?

Thanks!
--Dan
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Daniel Bryan
DevOps Engineer | Stratus Solutions
dbryan@stratussolutions.com
www.stratussolutions.com