Passive Monitors run as background processes (OS-level logging, SNMP traps waiting for a condition, for example) on the monitored device, Passive Monitors are not initiated by WhatsUp Gold like an active monitor.
- Windows Event Log. Platform log for Windows device.
- Syslog. Platform log for Linux/UNIX device.
- SNMP Trap. Trigger/predicate that denotes an event/threshold was met on the machine where the trap was set.