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POP Server

Connector dependencies​

The following monitoring connectors will be installed when you install the POP Server connector through the Configuration > Connectors > Monitoring Connectors menu:

Pack assets​

Templates​

The Monitoring Connector POP Server brings a host template:

  • Infra-POP-custom

The connector brings the following service templates (sorted by the host template they are attached to):

Service AliasService TemplateService Description
POPInfra-POP-customCheck the availability of the POP service for a specific address

The services listed above are created automatically when the Infra-POP-custom host template is used.

Collected metrics & status​

Here is the list of services for this connector, detailing all metrics and statuses linked to each service.

NameUnit
times

Prerequisites​

The remote server must have a POP service running and available.

Installer le connecteur de supervision​

Pack​

The installation procedures for monitoring connectors are slightly different depending on whether your license is offline or online.

  1. If the platform uses an online license, you can skip the package installation instruction below as it is not required to have the connector displayed within the Configuration > Connectors > Monitoring Connectors menu. If the platform uses an offline license, install the package on the central server with the command corresponding to the operating system's package manager:
dnf install centreon-pack-infrastructure-pop
  1. Whatever the license type (online or offline), install the POP Server connector through the Configuration > Connectors > Monitoring Connectors menu.

Plugin​

Since Centreon 22.04, you can benefit from the 'Automatic plugin installation' feature. When this feature is enabled, you can skip the installation part below.

You still have to manually install the plugin on the poller(s) when:

  • Automatic plugin installation is turned off
  • You want to run a discovery job from a poller that doesn't monitor any resource of this kind yet

More information in the Installing the plugin section.

Use the commands below according to your operating system's package manager:

dnf install nagios-plugins-tcp

Using the monitoring connector​

Using a host template provided by the connector​

  1. Log into Centreon and add a new host through Configuration > Hosts.
  2. Fill in the Name, Alias & IP Address/DNS fields according to your resource's settings.
  3. Apply the Infra-POP-custom template to the host.
  4. Deploy the configuration. The host appears in the list of hosts, and on the Resources Status page. The command that is sent by the connector is displayed in the details panel of the host: it shows the values of the macros.

Using a service template provided by the connector​

  1. If you have used a host template and checked Create Services linked to the Template too, the services linked to the template have been created automatically, using the corresponding service templates. Otherwise, create manually the services you want and apply a service template to them.
  2. Fill in the macros you want (e.g. to change the thresholds for the alerts). Some macros are mandatory (see the table below).
MacroDescriptionDefault valueMandatory
WARNINGConnection time Warning threshold in Seconds5
CRITICALConnection time Critical threshold in Seconds8
PORTCommunication Port110
  1. Deploy the configuration. The service appears in the list of services, and on the Resources Status page. The command that is sent by the connector is displayed in the details panel of the service: it shows the values of the macros.

How to check in the CLI that the configuration is OK and what are the main options for?​

Once the plugin is installed, log into your Centreon poller's CLI using the centreon-engine user account (su - centreon-engine). Test that the connector is able to monitor a resource using a command like this one (replace the sample values by yours):

/usr/lib/centreon/plugins/check_pop -H='10.0.0.1' -w=5 -c=8 -p=110

The expected command output is shown below:

POP OK - 0.082 second response time on 3.159.212.217 port 995 [+OK The Microsoft Exchange POP3 service is ready.]|time=0.081917s;15.000000;30.000000;0.000000;60.000000

Troubleshooting​

Please find the troubleshooting documentation for the API-based plugins in this chapter.

Available options​

All available options can be displayed by adding the -h parameter to the command:

/usr/lib/centreon/plugins/check_pop -H='10.0.0.1' -h