A solution to the umask problem: inotify to force permissions
Thu, 11/17/2011 - 18:06 — sandip(via en.positon.org)
Finding a good solution for sharing files between Linux users is a nightmare.
If using a unique UID is not a problem, it's the most simple solution. All clients access files with the same UID. This way you cannot know who does what, and users cannot fine tune access rights.