Hi, I have been experimenting and googling without finding so much as a hint to what I am doing wrong. I have a Samba server (Ubuntu 10.04) set up for standalone usage. I have Posix ACL's enabled on my filesystem, and a directory with the following permissions: # file: beheer/ # owner: beheerder # group: users user::rwx user:clamav:r-x user:beheerder:rwx group::--- group:users:--- mask::rwx other::--- default:user::rwx default:user:clamav:r-x default:user:beheerder:rwx default:group::--- default:mask::rwx default:other::--- The intention is that only the owner can use this directory and no one else, not even group members. The ACL confirms that group members have no access, I have even explicitly named the owner group with no rights. Others have no rights either. Yet, everyone who is a member of the group users can change to this directory and create files in it. It does not matter if they connect with a Windows machine or a Linux one. Once I change the group owner to some group the other users are not a member of, their access is denied as expected, but when I make them a member of that group, they regain access, even though group owner access is still set to ---. I must be overlooking something, but what? Hope anyone can help. regards, Erik --- ? ir. E.J.P. (Erik) van Linstee ? Van Linstee ICT