lightweight system monitoring tool

 Monitorix is a lightweight tool that allow you to gather and display system
 metrics.
 .
 It consists mainly of two programs: a collector, called monitorix, which is a
 Perl daemon that is started automatically like any other system service, and a
 CGI script called monitorix.cgi. Monitorix includes its own HTTP server built
 in, so you aren't forced to install a third-party web server to use it.