cat > /etc/dhcp/dhcpd.conf << "EOF"
# Begin /etc/dhcp/dhcpd.conf
#
# Example dhcpd.conf(5)

# Use this to enble / disable dynamic dns updates globally.
ddns-update-style none;

# option definitions common to all supported networks...
option domain-name "example.org";
option domain-name-servers ns1.example.org, ns2.example.org;

default-lease-time 600;
max-lease-time 7200;

# This is a very basic subnet declaration.
subnet 10.254.239.0 netmask 255.255.255.224 {
  range 10.254.239.10 10.254.239.20;
  option routers rtr-239-0-1.example.org, rtr-239-0-2.example.org;
}

# End /etc/dhcp/dhcpd.conf
EOF