Jun 12, 2018, 9:23 PM

@skew Digitalocean has the ufw firewall installed by default on the LAMP droplet one-click-apps; it's newish but I've seen it going back to around the start of the year from what I recall, at least.

Info on it is here: https://www.digitalocean.com/community/tutorials/how-to-set-up-a-firewall-with-ufw-on-ubuntu-16-04

That's the 'how to set it up', but the LAMP Ubuntu droplet has it installed and active by default, so if there are other adjustments you want to make, that covers other refinements/etc.