what is operator group for?

Hi all

I sent this once already but didn't see it come back, sorry
if it has 
appeared twice.


can anyone tell me what the operator group is for, or docs
where I can
read about it? I see that /sbin/shutdown and
/sbin/mk_snap_ffs are both 
executable by members and various things in /dev/ are
mountable by them.

I want a regular user to be able to mount removeable media
and shutdown 
the computer. If I make them a member of operator group what
else am I
allowing them to do?

Thanks

Chris

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> can anyone tell me what the operator group is for, or
docs where I can
> read about it? I see that /sbin/shutdown and
/sbin/mk_snap_ffs are both 
> executable by members and various things in /dev/ are
mountable by them.

My understanding is that group "operator" is
intended for those who
deal with devices, e.g. running backups and monitoring
printers.

> I want a regular user to be able to mount removeable
media and shutdown 
> the computer. If I make them a member of operator group
what else am I
> allowing them to do?

With the usual permission settings, you are also allowing
them to read
disks directly (e.g. with dump(8)), and thus to read any
file on the
system -- including the system's and other users' private
key files.

One alternative is sudo.
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