If backups interest you, perhaps we can discuss it some other time. This time we’re going to discuss security.
I’m going to outline in the following article some of the best practices I’ve learned along the years and help you “almost brick up, but not just yet” or “harden” your Linux server.
While reading this article, however, I suggest also reading this article as well. As we both try to tackle the same issues. I believe both articles eventually represent the same views in a different guise.
All of the ideas I’m coming up with are already implemented in shk. I suggest downloading shk, reviewing the code and using it.