OP needs to install naemon and chill. Monitoring means alerting, and not collecting metrics.
Monitoring means being notified of outages. Metrics are for troubleshooting and post mortems.
If you monitor CPU or RAM usage, you are doing it wrong. Oh and by the way, you want your ram to be full.
If you monitor CPU or RAM usage, you are doing it wrong. Oh and by the way, you want your ram to be full.