Some argument changes.

Documentation files.

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+.\" Process this file with 
+.\" groff -mdoc -Tascii jstart.8
+.\"
+.Dd April, 2004
+.Dt jstart 8
+.Os jstart 
+.Sh NAME
+.Nm jstart
+.Nd start a jail
+.Sh SYNOPSIS
+.Nm
+.Op Fl i
+.Ar path
+.Ar hostname
+.Ar ip-number
+.Op Ar command ...
+.Sh DESCRIPTION
+The 
+.Nm 
+utility starts a jail. It is a more secure replacement for the
+.Xr jail 8
+command. See the 
+.Xr jail 8 
+man page for details on how to setup a jail, and jail concepts. 
+.Pp
+.Nm
+purges down the environment before running the command inside the
+jail in order to prevent information leakage into the jail. If this
+is not desired, then use the 
+.Xr jail 8
+command.
+.Sh OPTIONS
+.Bl -tag -width ".Fl u Ar ip-number"
+.It Fl i
+Print the jail identifier of the newly created jail.
+.It Ar path
+Directory which is to be the root of the jail.
+.It Ar hostname
+Hostname of the prison.
+.It Ar ip-number
+IP number assigned to the prison.
+.It Ar command
+Optional command to be executed inside the jail. When not specified
+this defaults to
+.Pa "/bin/sh /etc/rc"
+.El
+.Sh NOTES
+.Nm 
+always runs as root, and runs 
+.Em command
+as root. If this is not desired, use 
+.Xr jail 8 
+with the
+.Fl u 
+option.
+.Pp
+The command called 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.
+.Sh FILES
+.Pa /etc/rc
+.Sh SEE ALSO
+.Xr jail 2 ,
+.Xr jail 8 ,
+.Xr jails 8 ,
+.Xr jls 8 ,
+.Xr jexec 8 , 
+.Xr jkill 8 
+.Sh AUTHOR
+.An Nate Nielsen Aq nielsen@memberwebs.com