Secondary groups and file permissions

[Daniel Lundqvist]

Hi, first of all, thank you for the great piece of software Samba4, you're
doing a great job!

I've setup Samba4 as our primary Windows Domain, everything works smoothly
except for one thing. Secondary groups does not give our users access to
files which those groups own neither on windows 7 or linux machine which is
joined via winbind, files own by users primary group gid 513 (Domain Users)
works as it's expected. My setup is as follow:


   - Samba 4 is running the latest git version och Ubuntu 12.04 with all
   dependencies listed on Samba4/HOWTO wiki-page
   - Files is on a iSCSI device with EXT4 which is mounted with acl,And
   user_xattr options, the filesystem is then shared via NFS3 to the machine
   running samba4.
   - I've added the gidNumber (which i got from wbinfo --sid-to-gid) and
   objectClass posixGroup. The group is a *Global* *Security* group.
   - The owner of the shared files are root:<samba_group> and chmod 770

i suspect that NFS3 is the culprit here as it does not seem to support
user_xattr, but i'm not sure and I want to confirm this suspicion with you
guys. Or am I doing something else wrong?

I could try to set up a samba share on the machine that the ext4 partition
is on, may that help?

Thank you for your time, regards,
-- 
Daniel Lundqvist
IEI\Island - Linköpings universitet