>I want to upgrade to VPS but need to read into settings for security and performance and all. Got any good source?
not really… did it blind my first time. (probably not recommended.)
Check out [this](http://board.phpbuilder.com/showthread.php?10390043-Ever-Been-Ha-gt-lt-0r3d), though (good info starting at post #7). I’m going to be adding [samhain](http://la-samhna.de/samhain/s_documentation.html) to my clients’ servers as I have the time.
I _would_ recommend being comfortable with the command line (you don’t have to know it all; just the basics + installs and how to research commands) and knowing how to set up SSH.