This is something I picked up while I was hosting with ServInt. A great VPS ISP in my oppinion.
vpsinfo is a PHP script that provides system status information gleaned from common Linux commands usually run from a shell prompt. It gathers the output from several commands into one web page, providing a quick overview of the system's current state.
vpsinfo is not a user account manager and does not utilize (or require) cPanel or another control panel.
While designed for use on a VPS, vpsinfo also works fine on a dedicated server. When run on a dedicated machine VPS-specific information is automatically excluded.
Download & screenshot: http://www.labradordata.ca/vpsinfo/