DHCP
The DHCP server is a must in any network. We will use ISC's DHCP server, and configure two servers to make a redundant system. The two servers will be able to synchronized the dhcp leases between servers and update the DNS too.
Software
apt-get install dhcp
Network
We will give the DNS master a static IP-address. Edit /etc/networking/interfaces and make the following changes.
# The primary network interface #allow-hotplug eth0 #iface eth0 inet dhcp auto eth0 iface eth0 inet static address 192.168.1.36 network 192.168.1.0 netmask 255.255.255.0 broadcast 192.168.1.255 gateway 192.168.1.1