snmp v3 (v3, because anything lower then this is unencrypted and 4) therefore not advised unless it’s on a trusted network) For most Linux distros and network

snmp v3 (v3, because anything lower then this is unencrypted and 4) therefore not advised unless it’s on a trusted network) For most Linux distros and network equipment, this will get you CPU/Disk/RAM/Net statistics. Use LibreNMS for this which runs in a VM or CT which can alert you if metrics go out of spec.