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.\"
.\" Copyright (c) 2004, Nate Nielsen
.\" All rights reserved.
.\"
.\" Redistribution and use in source and binary forms, with or without
.\" modification, are permitted provided that the following conditions
.\" are met:
.\"
.\" * Redistributions of source code must retain the above
.\" copyright notice, this list of conditions and the
.\" following disclaimer.
.\" * Redistributions in binary form must reproduce the
.\" above copyright notice, this list of conditions and
.\" the following disclaimer in the documentation and/or
.\" other materials provided with the distribution.
.\" * The names of contributors to this software may not be
.\" used to endorse or promote products derived from this
.\" software without specific prior written permission.
.\"
.\" THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
.\" "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
.\" LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
.\" FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
.\" COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
.\" INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
.\" BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
.\" OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
.\" AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
.\" OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
.\" THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
.\" DAMAGE.
.\"
.\"
.\" CONTRIBUTORS
.\" Nate Nielsen <nielsen@memberwebs.com>
.\"
.\" Process this file with
.\" groff -mdoc -Tascii jkill.8
.\"
.Dd April, 2004
.Dt jkill 8
.Os jkill
.Sh NAME
.Nm jkill
.Nd stop or restart a jail
.Sh SYNOPSIS
.Nm
.Op Fl fkqv
.Op Fl t Ar timeout
.Ar jail ...
.Nm
.Fl r
.Op Fl fqv
.Op Fl t Ar timeout
.Ar jail ...
.Nm halt
.Nm reboot
.Sh DESCRIPTION
The
.Nm jkill
utility stops one or more jails in an orderly fashion. It calls the
shutdown scripts inside the jail and then kills all remaining processes.
When used with the
.Fl r
option it can also restart the jail.
.Pp
.Nm
can also be run from within a jail, to shutdown or restart the jail.
Replace the
.Em halt
or
.Em reboot
binaries in your jails with
.Nm
as a hard link. Each of these commands will then perform their respective
actions in the jail.
.Sh OPTIONS
.Bl -tag -width ".Fl u Ar timeout"
.It Fl f
Force the processes to quit. If processes remain after sending them
a SIGTERM then kill them with SIGKILL which forces the a process exit.
.It Fl k
Don't call the shutdown scripts, just kill the processes.
.It Fl q
Supress warnings.
.It Fl r
After shutting down the jail, restart it by running the
.Pa /etc/rc
startup script.
.It Fl t Ar timeout
Specify a maximum timeout to wait after running the shutdown scripts and
between the sending the various kill signals. The default is 3 seconds.
.It Fl v
Show the output of shutdown or startup scripts on the console. This also
enables all warnings.
.It Ar jail
Either a jail id (which is an integer) or a jail host name.
.El
.Sh NOTES
It's generally assumed that the jail in question is a 'full jail' with
startup and shutdown scripts. If that's not the case use the
.Fl k
option.
.Pp
The startup and shutdown scripts inside the jail must be shell scripts
and must be owned by root in order to be executed.
.Pp
The environment is purged properly before running the scripts in the
jail in order to prevent unwanted information from leaking into the
jail.
.Pp
Both startup and shutdown are logged to the jail's console if it exists.
.Pp
.Nm
needs a valid
.Pa /dev/null
device in the jail. If it doesn't exit for some reason it is automatically
created.
.Sh FILES
.Pa /etc/rc
.Pa /etc/rc.shutdown
.Pa /dev/console
.Sh SEE ALSO
.Xr jail 8 ,
.Xr jails 8 ,
.Xr jls 8 ,
.Xr jstart 8 ,
.Xr kill 1
.Sh AUTHOR
.An Nate Nielsen Aq nielsen@memberwebs.com
|
