Resources and permissions

• Ideally, each resource (file, printer...) has :

  • One owner (called the user) and a group
  • A set of permissions set up by the owner. e.g.
    • File X can be read and written by the owner (U)
    • Read by people in the same group (G)
    • And other people have no rights at all (O)
    • Corresponding to “rw-r-----”