SshMonitor

The SshMonitor tests the availability of an SSH service. During the poll, it attempts to connect on the specified port. If the connection request is successful, then the service is considered up. Optionally, the banner line the node provides may be parsed and compared against a pattern before the service is considered up.

Monitor facts

Class Name

org.opennms.netmgt.poller.monitors.SshMonitor

Remote Enabled

true

Configuration and Use

Table 1. Optional monitor-specific parameters for the SshMonitor
Parameter Description Default

banner

Regular expression to be matched against the service’s banner.

n/a

client-banner

The client banner that Meridian uses to identify itself to the node.

SSH-1.99-OpenNMS_1.5

match

Regular expression to match against the service’s banner.
Deprecated, please use the banner parameter instead.
Note that this parameter does take precedence over the banner parameter.

n/a

port

TCP port to which SSH connection is tried.

22

retry

Number of attempts to establish the SSH connection.

0

This monitor implements the Common Configuration Parameters.

Examples

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

<service name="SSH" interval="300000" user-defined="false" status="on">
  <parameter key="retry" value="1"/>
  <parameter key="banner" value="SSH"/>
  <parameter key="client-banner" value="OpenNMS poller"/>
  <parameter key="timeout" value="5000"/>
  <parameter key="rrd-repository" value="/opt/opennms/share/rrd/response"/>
  <parameter key="rrd-base-name" value="ssh"/>
  <parameter key="ds-name" value="ssh"/>
</service>
<monitor service="SSH" class-name="org.opennms.netmgt.poller.monitors.SshMonitor"/>