If you have many different computers that are to be started on the network and then maybe removed again, there could be problems with insufficient address space, especially on the 192.168.0.0/24 network.

This is because of the lease time on IP-addresses. If this shows to be a problem, you could try to clear the dhcp leases file (when there are no clients on the network!!).

# rm /var/lib/dhcp3/dhcpd.leases

This will hopefully reset the address space and make all the addresses available again.



When contacting a client on the network through ssh and you don't know the IP-address:

# ping 192.168.0.255
This is the net broadcast address for 192.168.0.0/24 and should be replaced with the broadcast address for your network.

Interrupt with CTRL+C and have a look at the arp table:
# arp

or, if you know the MAC address of the client, here's an example:

# arp | grep 10:09:6B:2D:76:36

(Make sure you use CAPITAL letters in the MAC-address.)

This should produce a line where the IP can be read in the first column.