Cacti is a great tool for collecting information about systems and graphing it. However, it likes to use SNMP, and SNMP is often not desirable. Instead, I often see the need for a method that is:
- Secure. Use trusted, well-known, encrypted communication. Do not open up new ports.
- Zero install on the monitored system.
- As little installation or modification on the monitoring system as possible.
Over the last several years, I’ve slowly created more and more software to create Cacti graphs via standard POSIX command-line utilities over SSH with key-pair authentication. (I’ve also created similar software for Nagios, but that’s another matter.) The major problem with the work I’ve done is that it’s totally un-publicized.
The system works by[Read more...]