NSCA Server - Passive Host and Service Definitions

Overview

Once your Nagios service is receiving Passive NSCA checks, they will not appear anywhere in Nagios until you define host and service definitions.

The following definitions compliment the guides for installing NSClient++ to send check results to Nagios via NSCA.

The following Nagios Definitions will result in:

• A Passive Host object for the server DC02

• Passive Service objects for the server DC02 for the services:

  • CPU Load

  • Drive Usage

  • Memory Usage

  • Operating System Version

Which will result in something like this in Nagios:

Command

define command {
    command_name            check_dummy
    command_line            $USER1$/check_dummy $ARG1$
}

Templates

Host

define host {
    use                        generic-host
    name                        passive_host
    active_checks_enabled        0
    passive_checks_enabled        1
    flap_detection_enabled        0
    register                    0
    check_period                24x7
    max_check_attempts        1
    check_interval            5
    retry_interval            1
    check_freshness            0
    contact_groups            admins
    check_command            check_dummy!0
    notification_interval    60
    notification_period        24x7
    notification_options        d,u,r
}

Service

define service {
    use                        generic-service
    name                        passive_service
    active_checks_enabled        0
    passive_checks_enabled        1
    flap_detection_enabled        0
    register                    0
    check_period                24x7
    max_check_attempts        1
    check_interval            5
    retry_interval            1
    check_freshness            0
    contact_groups            admins
    check_command            check_dummy!0
    notification_interval    60
    notification_period        24x7
    notification_options        w,u,c,r
}

Host Definition

define host {
    use            passive_host
    host_name        DC02
}

Service Definitions

CPU Load

define service {
    use                    passive_service
    service_description    CPU Load
    host_name                DC02
}

Drive Usage

define service {
    use                    passive_service
    service_description    Drive Usage
    host_name                DC02
}

Memory Usage

define service {
    use                    passive_service
    service_description    Memory Usage
    host_name                DC02
}

Operating System Version

define service {
    use                    passive_service
    service_description    Operating System Version
    host_name                DC02
}

Final Thoughts

For any support related questions please visit the Nagios Support Forums at:

http://support.nagios.com/forum/

Article ID: 82
Created On: Mon, Mar 23, 2015 at 10:58 PM
Last Updated On: Mon, Feb 22, 2016 at 9:30 PM
Authored by: tlea

Online URL: https://support.nagios.com/kb/article/nsca-server-passive-host-and-service-definitions-82.html