====Firewall====

This is mostly about setting up a firewall in linux system using a package called **Ufw**. There are a few important commands to remember or to look for:
	1. Enable Firewall
		-sudo ufw enable
	2. Activate/deactivate port
		-sudo ufw allow/deny port-number
	3. It is always a good idea to check which port is open using:
		-sudo nmap -T Aggressive -A -v 127.0.0.1 -p 1-65000