Add BIND bash installation script

BashScripts/install-bind.sh

@@ -0,0 +1,36 @@
+# Install using: sudo su -c "bash <(wget -qO- /url/to/install-bind.sh)"
+
+REALUSER=$(logname)
+
+apt update 2>>install.log
+
+if ! ufw status | grep -q 'Status: active'; then
+	echo "Installing UFW..."
+	apt install ufw -y 2>>install.log &&
+	ufw default allow outgoing 2>>install.log &&
+	ufw default deny incoming 2>>install.log &&
+	ufw allow ssh 2>>install.log &&
+	ufw enable 2>>install.log
+fi
+if nslookup 127.0.0.1 | grep -q 'command not found'; then
+	echo "Installing DNS utils..."
+	apt install dnsutils 2>>install.log
+fi
+if ! named -v | grep -q 'BIND'; then
+	echo "Installing BIND9..."
+	apt install bind9 -y 2>>install.log &&
+	ufw allow Bind9 -y 2>>install.log &&
+	nslookup google.com 127.0.0.1
+fi
+if ! grep -q "listen-on {" "/etc/bind/named.conf.options"; then
+	sed -i -e 's/^};/\tlisten-on { any; };\n};/mig' /etc/bind/named.conf.options
+fi
+if ! grep -q "allow-query" "/etc/bind/named.conf.options"; then
+	sed -i -e 's/^};/\tallow-query { any; };\n};/mig' /etc/bind/named.conf.options
+fi
+if ! grep -q "\tforwarders {" "/etc/bind/named.conf.options"; then
+	sed -i -e 's/^};/\tforwarders { 1.1.1.1; 8.8.8.8; 8.8.4.4; };\n};/mig' /etc/bind/named.conf.options
+fi
+named-checkconf && systemctl restart bind9
+
+echo 'Installation complete'