owner, group (root, bin, ...)

[Chris Torek]

In article <7036 at ki4pv.uucp> tanner at ki4pv.uucp (Dr. T. Andrews) writes:
>... certain progs need to poke around in /dev/kmem, /dev/disk, or
>whatever: provide them with a "set group" bit (chmod 2111 /bin/df, &c.)
>and arrange that the progs be owned uid=bin/group=sys.  The important
>files (/dev/kmem, /dev/disk, &c.) should be owned by group "sys", and
>protected 0440.

Something like this is already done in 4.3BSD.  `df' is setgid operator;
`write' is setgid `tty'; `ps' is setgid `kmem'.  Not all possible setuid
root programs were changed, but the easier ones were done long ago.
-- 
In-Real-Life: Chris Torek, Univ of MD Comp Sci Dept (+1 301 454 7163)
Domain:	chris at mimsy.umd.edu	Path:	uunet!mimsy!chris