Cloudmon Probes handle agentless monitoring by polling devices using SNMP, WMI, ICMP, TCP, and NetFlow/IPFIX, then pushing the collected data to the Controller. Each probe monitors the devices in its local network segment.
The Cloudmon Probe is the agentless monitoring engine. It sits in the network, actively polls devices using the enabled protocols, and forwards the collected performance and availability data to the Cloudmon Controller at regular intervals. Separate probes must be installed for each distinct network segment within an organisation. In MSP deployments, separate probes are required for each individual customer environment.
Probes are managed from the Controller under Settings → Monitoring → Probes. Navigate to Settings → Monitoring → Probes to view all registered probes, their status, and the devices each probe is monitoring.
The following Cloudmon monitoring capabilities require a probe to be deployed in the relevant network segment:
| Feature | Protocol / Method |
| SNMP Network Device Monitoring | SNMP (Linux probe only) |
| WMI Monitoring | WMI (Windows or Linux probe) |
| Network Discovery | ICMP, TCP, SNMP |
| Layer 2 Topology Discovery | LLDP / CDP via SNMP |
| Host and Port Availability Monitoring | ICMP, TCP |
| Website and DNS Monitoring | HTTP/HTTPS, DNS |
| Log Monitoring (Syslog, SNMP Traps) | UDP/514 (Syslog), UDP/162 (SNMP Trap) |
| NetFlow / IPFIX Traffic Analysis | NetFlow / IPFIX via UDP/2055 |
| VMware Monitoring | VMware API via probe |
| Network Configuration Management (NCM) | SSH / Telnet via probe |
| AWS and Azure Cloud Monitoring | Cloud provider APIs via probe |