Re: changes to /etc/group ?
On Wed, 2003-05-21 at 13:15, Colin Watson wrote:
> On Wed, May 21, 2003 at 10:36:48AM -0500, Ron Johnson wrote:
> > On Mon, 2003-05-19 at 17:43, Dave Sherohman wrote:
> > > On Tue, May 20, 2003 at 12:20:26AM +0100, Dave Selby wrote:
> > > > When I change /etc/group is there a way of updating the system so the
> > > > changes are acknowledged without re-booting?
> > >
> > > /etc/group is checked when the user logs in. To gain access to
> > > newly-added groups, just log out and back in. No need to reboot.
> >
> > Yeah, but what a pain when you've got a bunch of different programs
> > running in windows, multiple URLs loaded, etc, etc.
> >
> > There should be a way to dynamically refresh the "group cache".
>
> Not possible because one process can't affect the privileges of another
> process in Unix. The Hurd claims to be able to do this using a strange
> hack with ports I think, although I'm not yet convinced of the security
> of that approach; it changes a lot of basic assumptions.
>
> You can use newgrp to start a new shell with an additional group.
Unless an X app needs the new privs. (I guess you could do the
xset hack, though.)
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| Ron Johnson, Jr. Home: ron.l.johnson@cox.net |
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