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nss_map_attribute gidNumber problem
- To: email@example.com
- Subject: nss_map_attribute gidNumber problem
- From: Liam Gretton <firstname.lastname@example.org>
- Date: Thu, 11 Feb 2010 08:33:49 +0000
- Organization: IT Services, University Of Leicester
- User-agent: Mozilla/5.0 (Windows; U; Windows NT 6.1; en-GB; rv:188.8.131.52) Gecko/20100111 Thunderbird/3.0.1
I have user accounts for various systems within an OpenLDAP db (OpenLDAP
2.4.12 on openSUSE 11.1). Clients are running the same version on the
As accounts have different requirements depending on which host is being
logged into, I've created a custom schema which implements the following
...and so on for multiple SYSn systems.
On the client using nss_ldap side I am mapping these to the plain
attributes as so in /etc/ldap.conf:
nss_map_attribute loginShell loginShellSYS1
nss_map_attribute homeDirectory homeDirectorySYS1
nss_map_attribute gidNumber gidNumberSYS1
Everything works perfectly EXCEPT for the gidNumber mapping. If that's
in place then 'getent group' does not return the LDAP groups. The logs
on the LDAP server suggest that the correct information has been
requested, and it does indeed churn out all the expected results, but
the client seems to be failing in doing the mapping at the last step.
ldapsearch on an account from the client returns all the expected
attributes including the gidNumberSYSn ones.
The LDAP accounts also have a normal gidNumber attribute, and if I
remove the mapping and use that, then getent group returns the expected
In fact, checking the LDAP server logs, it seems that when gidNumber is
mapped, getent is requesting 'cn' instead of 'gidNumber' from the
record. Without the mapping, it correctly requests the gidNumber attribute.
It's entirely likely that I've done something plain silly which is
causing this problem, but is there any special behaviour regarding group
mapping that I should have taken into account?
Liam Gretton email@example.com
HPC Architect http://www.le.ac.uk/its/
IT Services Tel: +44 (0)116 2522254
University Of Leicester, University Road
Leicestershire LE1 7RH, United Kingdom