[Freeipa-users] FC20 maps GECOS to display name?

[Jakub Hrozek]

On Tue, Jul 22, 2014 at 12:01:26PM -0700, Will Sheldon wrote:
> Hello everyone :)
> 
> We have setup FC20 to authenticate against freeipa (3.5). All is working great, except that Fedora GDE appears to show the contents of the GECOS field as the user’s display name, and because we (mis)use GECOS to store geographic info this means that users get the option to “log off Canada” (for example) which is a little confusing.
> 
> I’ve checked the docs but I’m unable to work out where this mapping is stored. Has anyone had any success in modifying the source field for LDAP user display name mapping in FC20 (for gnome)?
> 
> 
> Kind regards,
> 
> Will Sheldon

Hi,

I think GDM behaves correctly, the semantics of GECOS is usually "the
real name", so for me, GDM shows "Jakub Hrozek".

If you override GECOS to something non-existant, SSSD should fall back
to the value of 'cn' which is usually the username. Can you try setting:
    ldap_user_gecos = nosuchattr # yes, literally

and either cleaning the cache or using sss_cache -U ?

btw the gecos output should also show when you run 'getent passwd
$user'.