These Cloud Firewalls from @DigitalOcean seem like a great idea. Not replacement for good server management, but 👍 https://www.digitalocean.com/community/tutorials/an-introduction-to-digitalocean-cloud-firewalls?utm_medium=email&utm_source=local&utm_campaign=CloudFirewallsAnnounce
@digitalocean has been upping their game a lot lately. Really love being a customer.