Ubuntu重启网络/etc/init.d/networking restart报错

$ sudo /etc/init.d/networking restart
* Running /etc/init.d/networking restart is deprecated because it may not enable again some interfaces
* Reconfiguring network interfaces...          [ OK ]

$ sudo iptables-save
$ sudo /etc/init.d/networking restart

zlf@zlf:/etc/init.d$ service networking restart
stop: Unknown instance:
start: Rejected send message, 1 matched rules; type="method_call", sender=":1.94" (uid=1000 pid=3847 comm="start networking ") interface="com.ubuntu.Upstart0_6.Job" member="Start" error name="(unset)" requested_reply="0" destination="com.ubuntu.Upstart" (uid=0 pid=1 comm="/sbin/init")

zlf@zlf:/etc/init.d$ sudo service networking restart
stop: Unknown instance:
networking stop/waiting

case "$1" in
start)
        /lib/init/upstart-job networking start
        ;;
stop)
        check_network_file_systems
　　　　 -------略过-------

force-reload|restart)
         process_options
 
         log_warning_msg "Running $0 $1 is deprecated because it may not enable again some interfaces"
         log_action_begin_msg "Reconfiguring network interfaces"
         ifdown -a --exclude=lo || true
         if ifup -a --exclude=lo; then
             log_action_end_msg $?
         else
             log_action_end_msg $?
         fi
         ;;

ifdown -a
       Bring down all interfaces that are currently up.
ifup -a
       Bring up all the interfaces defined with auto in /etc/network/interfaces

auto eth0
iface eth0 inet dhcp
----下略----