Ask HN: What basic things to do with a new server

Hello everyone,

i had some months off from developing and setting up servers. I remember some threads like: "My first 5 minutes on a new server" with some security basics.

I'm about to start bootstrapping my idea into a business and would like to get some tips on what to do to get a basic server for RoR and Wordpress ready and somewhat of secure.

Any kind of tutorials, advice and input is very appreciated!