[KLUG Members] Group permissions change when a file is modified by non-owner

[Adam Tauno Williams]

> All files permissions have been set with owners and groups
> giving each the ability to RW. When a person that has group permission modifies
> a file owned by someone else, the permissions for that file change to the
> person making the modification. It changes the owner and group to the userid
> making the modification.
> Ex. Chris is the owner of file test, muni is the group - rwxrwr, tami is a
> member of the group muni
> When tami goes to Chris' file test and makes modifications per her permission
> from the group, once tami saves the file test, the owner and group permissions
> switch from chris, muni to tami, tami
> How do I prevent the permissions from changing???

You don't mention the application being used.  In most cases OLE-Stream
apps (M$-Office) don't "update" files, every time they save the file is
removed and rewritten - as far as the OS is concerned the file is
recreated so permissions and ownership are reset.  It is the result of a
stupid design;  this is extremely noticeable when using a network
trashcan.