Wireless erro

leandro@leandro-desktop:~$ sudo /etc/inti.d/networking restart
[sudo] password for leandro:
sudo: /etc/inti.d/networking: command not found
leandro@leandro-desktop:~$ sudo /etc/initi.d/networking restart
sudo: /etc/initi.d/networking: command not found
leandro@leandro-desktop:~$ sudo /etc/init.d/networking restart
 * Reconfiguring network interfaces...                                          wlanctl-ng: Operation not supported
eth0: ERROR while getting interface flags: No such device
There is already a pid file /var/run/dhclient.eth0.pid with pid 134519120
Internet Systems Consortium DHCP Client V3.0.5
Copyright 2004-2006 Internet Systems Consortium.
All rights reserved.
For info, please visit http://www.isc.org/sw/dhcp/

SIOCSIFADDR: No such device
eth0: ERROR while getting interface flags: No such device
eth0: ERROR while getting interface flags: No such device
Bind socket to interface: No such device
Failed to bring up eth0.
wlanctl-ng: Operation not supported
Failed to enable the device, exitcode= 1 .
run-parts: /etc/network/if-pre-up.d/linux-wlan-ng-pre-up exited with return code 1
                                                                         [ OK ]
leandro@leandro-desktop:~$ ifconfig
lo         Encapsulamento do Link: Loopback Local  
          inet end.: 127.0.0.1  Masc:255.0.0.0
          endereo inet6: ::1/128 Escopo:Mquina
          UP LOOPBACK RUNNING  MTU:16436  Mtrica:1
          pacotes RX:188 erros:0 descartados:0 excesso:0 quadro:0
          Pacotes TX:188 erros:0 descartados:0 excesso:0 portadora:0
          colises:0 txqueuelen:0 
          RX bytes:15108 (14.7 KB) TX bytes:15108 (14.7 KB)

wlan0      Encapsulamento do Link: Ethernet  Endereo de HW 00:1B:11:B9:64:02  
          inet end.: 192.168.0.4  Bcast:192.168.0.255  Masc:255.255.255.0
          endereo inet6: fe80::21b:11ff:feb9:6402/64 Escopo:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Mtrica:1
          pacotes RX:0 erros:0 descartados:3100 excesso:3100 quadro:3100
          Pacotes TX:0 erros:0 descartados:0 excesso:0 portadora:0
          colises:0 txqueuelen:1000 
          RX bytes:0 (0.0 b) TX bytes:0 (0.0 b)
          IRQ:11 

leandro@leandro-desktop:~$ ping -c4 192.168.0.1
PING 192.168.0.1 (192.168.0.1) 56(84) bytes of data.
From 192.168.0.4 icmp_seq=1 Destination Host Unreachable
From 192.168.0.4 icmp_seq=2 Destination Host Unreachable
From 192.168.0.4 icmp_seq=3 Destination Host Unreachable
From 192.168.0.4 icmp_seq=4 Destination Host Unreachable

--- 192.168.0.1 ping statistics ---
4 packets transmitted, 0 received, +4 errors, 100% packet loss, time 3008ms
, pipe 3
leandro@leandro-desktop:~$