Demarrer dhcp ubuntu

Bonjour,


j'ai installé dhcp par la commande sudo apt-get install dhcp3-server

et j'ai configurer dhcpd.conf voici son contenu

option dhcp-max-message-size 2048;
use-host-decl-names on;
deny unknown-clients; # This will stop any non-node machines from appearing on the cluster network.
deny bootp;

# DNS settings
option domain-name "cluster.lan"; # Just an example name - call it whatever you want.
option domain-name-servers 192.168.1.1; # The server's IP address, manually configured earlier.

# Information about the network setup
subnet 192.168.1.0 netmask 255.255.255.0 {
option routers 192.168.1.1; # Server IP as above.
option broadcast-address 192.168.1.255; # Broadcast address for your network.
}

# Declaring IP addresses for nodes and PXE info
group {
filename "pxelinux.0"; # PXE bootloader. Path is relative to /var/lib/tftpboot
option root-path "192.168.1.1:/nfsroot/kerrighed"; # Location of the bootable filesystem on NFS server

host node1 {
fixed-address 192.168.1.101; # IP address for the first node, kerrighednode1 for example.
hardware ethernet 00:0C:29:6E:9F:E1; # MAC address of the node's ethernet adapter
}

host node2 {
fixed-address 192.168.1.102;
hardware ethernet 00:0c:29:A6:51:5A;
}

host node3 {
fixed-address 192.168.1.103;
hardware ethernet 00:0C:29:78:95:24;
}


server-name "server"; # Name of the server. Call it whatever you like.
next-server 192.168.1.1; # Server IP, as above.
}

et quand je tente de le redemarrer avec la commande
sudo /etc/init.d/dhcp3-server start
je recoi : commande not found
c bizzard ,d'ou vien ce probleme ?


merci d'avance