So I recently installed ubuntu and I have been working with it no problem.While browsing through the security guides (specifically: https://wiki.ubuntu.com/BasicSecurity) I noticed this: "enable the firewall (sudo ufw enable) without further tweaks;" After some further reading I found out that ubuntu comes with the kernel firewall and ufw is just an easier iptables manipulator so why do I need to enable it without any tweaks?
Or am I completely wrong and there is another reason its required?