NtpMonitor

The NTP monitor tests for NTP service availability. During the poll, an NTP request query packet is generated. If a response is received, it is parsed and validated. If the response is a valid NTP response, the service is considered available.

Monitor facts

Class Name

org.opennms.netmgt.poller.monitors.NtpMonitor

Configuration and use

Table 1. Optional monitor-specific parameters for the NtpMonitor
Parameter	Description	Default
port	The destination port to send the NTP.	123
retry	Number of attempts to get a response.	0
timeout	Time in milliseconds to wait for a response.	5000

This monitor implements the Common Configuration Parameters.

Examples

Example uses CentOS/RHEL path name. For Debian/Ubuntu, use /var/lib/opennms/rrd/response.

<!-- Fast NTP server -->
<service name="NTP" interval="300000" user-defined="false" status="on">
  <parameter key="retry" value="2"/>
  <parameter key="timeout" value="1000"/>
  <parameter key="rrd-repository" value="/opt/opennms/share/rrd/response"/>
  <parameter key="rrd-base-name" value="ntp"/>
  <parameter key="ds-name" value="ntp"/>
</service>
<monitor service="NTP" class-name="org.opennms.netmgt.poller.monitors.NtpMonitor"/>