Installation guide

Table A.13. General::UDP Check settings

Field Value

Port* 1

Send

Expect

Timeout* 10

Critical Maximum Latency

Warning Maximum Latency

A.4.6. General::Uptime (SNMP)

The General::Uptime (SNMP) probe records the time since the device was last started. It uses the SNMP

object identifier (OID) to obtain this value. T he only error status it will return is UNKNOWN.

Requirements - SNMP must be running on the monitored system and access to the OID must be

enabled to perform this probe.

This probe's transport protocol is User Datagram Protocol (UDP).

Table A.14 . General::Uptime (SNMP) settings

Field Value

SNMP Community String* public

SNMP Port* 161

SNMP Version* 2

Timeout* 15

A.5. Linux

The probes in this section monitor essential aspects of your Linux systems, from CPU usage to virtual

memory. Apply them to mission-critical systems to obtain warnings prior to failure.

Unlike other probe groups, which may or may not require the Red Hat Network monitoring daemon, every

Linux probe requires that the rhnm d daemon be running on the monitored system.

A.5.1. Linux::CPU Usage

The Linux::CPU Usage probe monitors the CPU utilization on a system and collects the following metric:

CPU Percent Used - The five-second average of the percent of CPU usage at probe execution.

Requirements - T he Red Hat Network monitoring daemon (rhnm d) must be running on the monitored

system to run this probe.

Red Hat Satellite 5.6 Reference Guide