I have 3 different domains and I want to host them in the same droplet. Any idea how can I do it? My idea is create a droplet with 16.04.1 x64 but then I have not idea what I have to do. Any suggestion? thanks.

Today I have started to see in my website this message "Error establishing a database connection", so I was investigating and I saw this article (https://www.digitalocean.com/community/tutorials/how-to-protect-wordpre...