From owner-freebsd-hackers  Thu May 16 11: 3:49 2002
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Date: Thu, 16 May 2002 15:03:22 -0300 (ADT)
From: "Marc G. Fournier" <scrappy@hub.org>
To: Patrick Thomas <root@utility.clubscholarship.com>
Cc: freebsd-hackers@freebsd.org
Subject: Re: reboot your own jail ?
In-Reply-To: <20020516095228.R79837-100000@utility.clubscholarship.com>
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from the man page:

   Managing the Jail
     Normal machine shutdown commands, such as halt(8), reboot(8), and
     shutdown(8), cannot be used successfully within the jail.  To kill all
     processes in a jail, you may log into the jail and, as root, use one of
     the following commands, depending on what you want to accomplish:

           kill -TERM -1
           kill -KILL -1

Last I read, a process couldn't trap SIGKILL to do anything with it,
wheres SIGTERM is trappable, so a proper shutdown of the process can be
accomplished, whereas -KILL just blows it out of the water ...


 On Thu, 16 May 2002, Patrick Thomas wrote:

>
> why -TERM ?  the jail man page recommends -KILL ... just curious...
>
> On Thu, 16 May 2002, Marc G. Fournier wrote:
>
> >
> > web interface that is password protected that does:
> >
> > 	ssh root@<jail> kill -TERM -1
> > 	<restart jail>
> >
> >
> >
> >
> > On Thu, 16 May 2002, Patrick Thomas wrote:
> >
> > >
> > > currently I reboot jails with this process:
> > >
> > > 	1. someone logs into the jail and runs `kill -KILL -1`
> > > 	2. someone logs onto the BASE machine and starts it up again.
> > >
> > > I wish I could do this without involving the admin of the base machine.
> > >
> > > Has anyone come up with a strategy for allowing the root jail user to
> > > successfully reboot their own jail without outside help ?
> > >
> > > I can think of some horrible hacks involving constantly checking if the
> > > jail is running....and if it ever stops (presumably someone rebooted it)
> > > then start it again...hopefully there is sonhmething more elegant than
> > > that.
> > >
> > > --pt
> > >
> > >
> > > To Unsubscribe: send mail to majordomo@FreeBSD.org
> > > with "unsubscribe freebsd-hackers" in the body of the message
> > >
> >
> >
>
>


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