[Samba] number of groups of NT account causes authentication problems

Michael G. Noble mnoble at rfmagic.com
Wed Mar 5 19:47:55 GMT 2003

Solaris has a 15 member limit to groups. Since you are under that 
limit, it should not be a problem.  I have Samba running on an Ultra
60 with Solaris8, samba version 2.2.5.  I have users who are members
of at least 14 groups and not having any problems accessing shared


On Tue, 2003-03-04 at 13:35, Gopal Bhat wrote:
> I am facing a strange problem related to authentication of NT users 
> accessing the SAMBA server.
> Here are the details:
> Server:  Solaris 9, SUN Ultra 60,  SAMBA 2.2.7a with PAM and WINBIND
> Client: Windows XP, NT4.0, 2000
> Symptoms:
> Created a share \\server\test (UNIX: /export/SMB/test)  with access to 
> group 'TestGoup' where 'TestUser' is a member.
> 'TestUser' is a member of 10 more groups along with 'TestGroup' (Total 
> number of TestUser's group = 11)
> With the above settings 'TestUser' can't access the share 
> '\\server\test', and the following message shows up in the Client.log:
> [2003/03/04 13:31:52, 0] smbd/sec_ctx.c:initialise_groups(244)
>   Unable to initgroups. Error was Not owner
> [2003/03/04 13:31:52, 0] smbd/sec_ctx.c:initialise_groups(247)
>   This is probably a problem with the account domain\testuser
> [2003/03/04 13:31:52, 0] smbd/service.c:make_connection(599)
>  client ( Can't change directory to /export/SMB/test 
> (Permission denied)
> If I change the number of groups the user 'TestUser' belongs from 11 to 
> 8 ('TestGroup'  + 7 other groups), the user can access the share 
> '\\server\test' without any problems.
> It looks like there is some limitation on number of NT group memberships 
> 'smbd' can handle.  
> Note: 'wbinfo' returns all the right groups of the user without any 
> problems.
> Is there anyone out there who is aware of this problem and knows a 
> workaround/solution to this?
> I really appreciate any help from the prestigious SAMBA Team.
> Thanks,
> Gopal
> -- 
> To unsubscribe from this list go to the following URL and read the
> instructions:  http://lists.samba.org/mailman/listinfo/samba

More information about the samba mailing list