CUPS backend issue writing to file

[pipitas at gmail.com]

> > Did you put my advice on trial? (given last Sunday):
> >
> > "If you give a backend permissions of "700" it will run as root."
>
> I thought the 755 permissions I tried means the same you said. Thought
> the first 7 makes it run as root.

I'd have said "755" if I had meant "755".  :-)

The first 7 gives read, write and execute permissions to root. The "55" give read and execute permission to anybody else. But the "755" will make the backend being run as a less-privileged user when started by cupsd.