Most UNIX systems use the standard POSIX (Portable Operating System Interface) permissions when managing access to files. Things seem to get hairy when using AFP and Apple changed up SMB a lot after breaking ties with SAMBA and implementing their own, albeit lesser version of SMB (you Mac geeks out there, correct me if I'm wrong - I want to know.)įrom an article on TechRepublic I found this great explanation: You set them to AFP after ongoing issues using SMB. There are two things in play here, POSIX style permissions (*nix based) and NFSv4 ACLs (Access Control Lists) used on your server. Be sure to add this new group on top of the others and then propagate the permissions.' As far as I know the default permissions are only responsible for posix and not for ACL. It is however IMPORTANT to ADD a new group or user if you want to keep the inheritance. I changed the default group that was already set for the share point.