Ubuntu 14.04 DNS Primary Master with Caching Nameserver

#!/bin/bash
#title           :install-dns-on-ubuntu1404.sh
#description     :This script will install dns on ubuntu 14.04
#author          :Henry den Hengst
#date            :25 November 2014
#version         :0.1
#usage           :bash install-dns-on-ubuntu1404.sh
#URL             :-
#user_password   :-
#notes           :-
#bash_version    :-
#credits_source  :https://help.ubuntu.com/
#
sudo apt-get update && sudo apt-get upgrade -y
sudo apt-get install bind9 dnsutils openssh-server ntp -y
# Edit /etc/network/interfaces to meet your requirements.
#
sudo sed -i 's!dhcp!static!g' /etc/network/interfaces
sudo sed -i '$ a\address 192.168.1.10' /etc/network/interfaces
sudo sed -i '$ a\netmask 255.255.255.0' /etc/network/interfaces
sudo sed -i '$ a\network 192.168.1.0' /etc/network/interfaces
sudo sed -i '$ a\broadcast 192.168.1.255' /etc/network/interfaces
sudo sed -i '$ a\gateway 192.168.1.1' /etc/network/interfaces
#
sudo sed -i '$ a\dns-nameservers 192.168.1.10 192.168.1.11 8.8.8.8 8.8.4.4' /etc/network/interfaces
sudo sed -i '$ a\dns-search cloudconsult.local' /etc/network/interfaces
sudo sed -i '$ a\dns-domain cloudconsult.local' /etc/network/interfaces
#
# restart network
sudo service networking restart
#
cd /etc/bind/
# sudo rm named.conf.options
# sudo wget -c https://dl.dropboxusercontent.com/u/36257811/bind9/named.conf.options
sudo rm named.conf.local
sudo wget -c https://dl.dropboxusercontent.com/u/36257811/bind9/named.conf.local
sudo wget -c https://dl.dropboxusercontent.com/u/36257811/bind9/db.cloudconsult.local
sudo wget -c https://dl.dropboxusercontent.com/u/36257811/bind9/db.192
sudo service bind9 restart
sudo ufw enable
sudo ufw allow OpenSSH
sudo ufw allow Bind9