"Its my understanding that if I use ifconfig eth0 it will tell me the IP address assigned to the network card and the network mask. However isn't it the case that these would've been assigned by DHCP, and therefore its a trivial task to look at the DHCP logs, or filter the address leases to monitor for suspicious activity? Is there a way to determine the private network IP space without using DHCP?"
,.the
command brings up the list of active network interfaces and your l00pback,
you are correct that DHCP automatically gives you an ip address, but you Can also set ur ip add manually.
use 2 commands, take down the network interface, then bring it back up with the desired iP address
(example using ethernet)
Code:
ifconfig eth0 up 192.168.x.x