It may be a surprise to many that most cyber attacks are relatively straight forward, exploiting well known vulnerabilities. So if you’re thinking of exposing your server to the internet, you should definitely think about server hardening. Server hardening is all about making your server secure by cutting out unnecessary risks. Think of it like locking all the doors and windows in your house. The way I harden my machines is by following this checklist of actions when setting-up a machine.