Debian 8 – GW
apt-get install dnsmasq
nano /etc/dnsmasq.conf
dhcp-range=eth1,192.168.10.100,192.168.10.199,4h dhcp-option=1,255.255.255.0 # Subnet Mask dhcp-option=3,192.168.10.254 # Router/Gateway dhcp-option=6,192.168.10.50,192.168.10.254 # Domain Server (DNS) dhcp-option=44,192.168.10.50 # Netbios Name Server (WINS) dhcp-option=4,192.168.10.50 # Time Server
https://wiki.debian.org/HowTo/dnsmasq#Basic_DNS_Setup