This is the way Unix discretionary access controls work. So long as the files are in Eve's home directory, and she retains ownership of her home directory, she will be able to rename the ~/.config/ directory and continue on as she wishes.
Furthermore, the screen locking is handled by a process that runs as her user account in her user session. She could simply attach a debugger to it and lock it solid. Or she could write a little program to keep the X11 session 'active' and thus keep the screen from locking. Or she could click on a menu entry every time she walks away from the computer to keep the screen from locking. Or she could write her own screen locking program that would act as she wishes. You could try using the shadow 'lock account' tools; note that this is trivial to bypass if she can sit at the computer during bootup, unless you also take steps to lock the hard drive, lock the bios, and lock the grub configuration. But it cannot help you enforce screen locking when you wish. Not much short of forcibly killing her processes or rebooting the machine will help. Thanks -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1767618 Title: system Brightness & Lock app ignores file permissions To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-screensaver/+bug/1767618/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
