#!/bin/sh
	sudo -i
	apt update && apt upgrade
	#Install Apache webserver
	apt install apache2
	systemctl start apache2
	systemctl status apache2
	#Being a webserver, Apache listens on port 80 by default. Use the netstat command as shown to verify this.
	sudo netstat -pnltu
	#Install Varnish HTTP Accelerator
	apt install varnish
	systemctl start varnish
	systemctl status varnish
	#Configuring Apache and Varnish HTTP Cache
	nano /etc/apache2/ports.conf
	listen to port 80 to 8080
	nano /etc/apache2/sites-enabled/000-default.conf
	listen to port 80 to 8080
	systemctl restart apache2
	#Setting up Varnish to listen to port 80
	nano /etc/default/varnish
	Scroll and locate the attribute ‘DAEMON_OPTS’. Be sure to change the port from 6081 to port 80
	#If you check the /etc/varnish/default.vcl file, you should get the output shown below.
	nano /etc/varnish/default.vcl
	#Lastly, we need to edit the /lib/systemd/system/varnish.service and modify the port in ExecStart directive from port 6081 to 80.
	nano /lib/systemd/system/varnish.service
	Locate the ExecStart directive and change the port from port 6081 to 80.
	systemctl restart apache2
	systemctl daemon-reload
	systemctl restart varnish
	#Testing the Configuration
	curl -I server_IP