Good point. I didn't mention it in this post, but DO has a great article on getting started with firewalls: https://www.digitalocean.com/community/tutorials/how

Good point. I didn't mention it in this post, but DO has a great article on getting started with firewalls: https://www.digitalocean.com/community/tutorials/how-to-set-up-a-firewall-using-iptables-on-ubuntu-14-04 https://www.digitalocean.com/community/tutorials/how-to-set-...