sysfence is a resource monitoring tool designed for Linux machines. While running as daemon it checks resource levels and makes desired action if some values exceed safety limits.
gisdnload is an ISDN load meter for Linux running as a Gnome applet. The display supports autoranging and changes its background color depending on whether you are online or offline.
RFC is a set of scripts that aims to help system-Administrators run a filesystem-checker (like tripwire, aide and so on...) from a "master-node" to several "slave-nodes" using ssh, scp, sudo and few other common shell commands.