"GNU/Linux is without doubt a brilliant server OS, but
monitoring your Linux server can be a challenge. There are a few
powerful tools available, such as MRTG, the Multi Router Traffic
Grapher, but setting them up can be an exercise in frustration for
first-time users. By contrast, Cacti, a graphing program for
network statistics, is designed to be easy for relatively
inexperienced systems administrators to use, while at the same time
being powerful enough to be used in complex networks.
"Cacti's Web site describes the software as
"a complete network graphing solution designed to harness the
power of RRDTool's data storage and graphing functionality..."