Samba apparently does not recognize Linux secondary groups.

[Ed Wilts]

On Mon, Mar 20, 2006 at 10:31:08AM -0800, Gavin McDonald wrote:
> Check the number of groups the windows user belongs to.  I have seen
> samba misbehave when a Windows user belongs to 30 or so Groups.  SMB
> silently ignores all group memberships from the windows side, and you are
> left with only the permissions of the windows-to-linux user mapping.

It's not Samba that's ignoring it - it is glibc (I think).  You can't
access the files from the shell either.

This was a restriction through RHEL 3 - it's not an issue in RHEL 4 (the
limits are much, much higher).

        .../Ed

-- 
Ed Wilts, RHCE
Mounds View, MN, USA
mailto:ewilts at ewilts.org
Member #1, Red Hat Community Ambassador Program