[GRLUG] SuSE 13.2 group weirdness

Gary Greene greeneg at tolharadys.net
Tue Oct 6 15:12:27 EDT 2015

Agreed with Adam on this. As an admin that has worked in a fairly large LDAP shops (both OpenLDAP and AD), I appreciate this change with SSSd. 

Gary L. Greene, Jr.
Volunteer developer of the KDE F/OSS project and Project Lead for AltimatOS
    http://www.kde.org/                 http://www.altimatos.com/
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> On Oct 6, 2015, at 11:59 AM, Adam Tauno Williams <awilliam at whitemice.org> wrote:
> Quoting "L. V. Lammert" <lvl at omnitec.net>:
>> Build a new server (minimal install), and it is exhibiting some strange
>> group behavior!
>> A UID is in three groups, .. *but* only the primary group shows at login!
>> After that, one can 'newgrp' to a different group of which you are Member,
>> and if you are not a Member of that group, it requires a password.
>> Has anyone ever seen behavior like this? It's a new one to me!
> Are you using SSSD for ident?
> This is sort of a 'new default'.  Group enumeration due to absurdities in the NSS functions can be scandalously inefficient;  even more so now that many identity systems support nested groups [Ugh!]. Group membership may not be enumerated, but it should work for interrogation.
> Lots of new code and subsystems work this way.
> It is a *feature* you can toggle *off* if you really need getpwent() et al to enumerate all groups.  But generally all it will do is make things slower.
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