Re: Mysterious changing file permissions

From: Adam Aube (aaube01_at_baker.edu)
Date: 02/17/04

  • Next message: Paul Johnson: "Re: DON'T OPEN THE PREVIOUS MESSSAGE FROM ME!!!!!!!!!!! VIRUS" 
    To: debian-user@lists.debian.org
Date: Tue, 17 Feb 2004 15:09:53 -0500

    On Tuesday 17 February 2004 02:17 pm, Hhayes wrote:
    > I have a Debian box running as a file server on a network with 50
    > users. So far it works great except for the user/file permissions.

    How are you sharing the files? NFS? Samba? Something else?

    > I can go into a directory and set the owner and group permissions to
    > read/write on all files in the directory and that works fine. Then as
    > soon as one of the users opens a file and saves it, the permissions on
    > that file change to read only for the group permissions and changes the
    > owner to the user that just saved the file, resulting in a file that no
    > other users can write to.

    If you set the setGID bit (chmod g+s) on a directory, all files created in
    the directory will have the same group ownership as the directory itself.

    As for the permissions changing, this is a umask problem - you should look
    at the umask setting for your file sharing service.

    Adam 

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