DHCP

HOWTO: List Leases On The Command Line
egrep "lease|hostname|hardware|\}" /var/lib/dhcp/dhcpd.leases

or

egrep "lease|hostname|hardware|\}" /var/lib/dhcpd/dhcpd.leases

Thanks - https://unix.stackexchange.com/questions/91799/command-to-list-assigned-dhcp-addresses/