Append only directory ? Is this possible with unix permissions ?

Gore Jarold gore_jarold at
Tue Apr 10 19:49:23 UTC 2007


I have a user whose home directory I would like to
make "append only".

That is to say, they cannot delete files, or delete
information from files, but they _can_ create new
files or append information to existing files.

Or, if that is not possible, at the very least I
wouldlike the ability to create new files, while not
being allowed to delete any files.

Is this possible with unix permissions ?  Is it
possible in the freebsd filesystem in any way at all ?

If not, any suggestions ?

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