Thank you for linking to your article, it was perfect timing as I'm about to throw up a tiny Ruby/Sinatra/PostgreSQL site I've been making for a local need. The

Thank you for linking to your article, it was perfect timing as I'm about to throw up a tiny Ruby/Sinatra/PostgreSQL site I've been making for a local need. The quality of my actual code aside, I understand that servers are incredibly complex beasts, especially when it comes to security, and I want to ask (And because of their complexity, I assume it's a small question with a huge, complex answer), how relatively 'safe' would I be following a guide like yours along with other ones that specify some simple, good practices for setting up a server? By safe, I mean in the context of the server getting hacked. I know people wouldn't bother but I'd rather at least feel a tiny bit safe. I'm going with a VPS (Digital Ocean) too so I can slowly learn all these things.