Just a few useful reference links so I can find them:

Entropy (ie the source of random numbers) is generated by keeping an eye on such things as mouse/keyboard use, hardware interupts. However on VPSs some of this is unavailable, so here's the process for using the bitfolk entropy service.

Introduction

This is intended to be a very basic guide to getting a VPS up and going, it's aimed at the hobbiest who has enough linux knowledge to want to use a VPS but isn't quite sure how to go about getting it up and going. It assumes you'll be using an Ubuntu VPS from bitfolk, if this isn't the case then some of the things in this guide may be slightly off.