On Mon, Dec 1, 2008 at 12:37 AM, Rony Bill <[EMAIL PROTECTED]> wrote: > Hello, > > In the NTFS file system, under the security option in a folder's properties, > there is an advanced option where a user/group can be restricted from > writing or deleting existing files in the directory but at the same time can > be granted permission to create a new file or folder. So while existing data > on that folder cannot be edited or deleted, the user can paste new files in > that folder. Can such special permissions be granted in EXT3 or JFS file > systems? On the net I find that advanced ACLs mainly have 3 options of read > write and execute. If write permission is granted, user will delete files. > Without read permission, user cannot paste new files. >
You can look at ACLs in ext3 in general and xattrs ( extended attributes ) to help you in this quest. Mapping between unix and NTFS permissions can never really be complete since they are two different models altogether. user lists and application policies (app armour ) usually solve a lot of problems and work better than the weirdness that windows propogates. e.g NTFS has 12 atomic permissions which work differently depending on the combo evoked. Mapping this has been a nightmare for the most strongest of Samba developers because NTFS != posix . MS creates standards which only they can implement. alternatively you can check out ext4 for such features. I am not sure how much the permissions model has changed there but it has improved is what i have read. About time it gets tested too ! :) regards, C -- http://mm.glug-bom.org/mailman/listinfo/linuxers
