Home
CMC
Learn how CMC provides centralized visibility and monitoring of Nozomi Networks sensors.
User Guide
Information and resources about the main features of the Central Management Console (CMC), and the tasks that you can do from the user interface (UI).
Assertions
The Assertions page shows all the assertions and lets you configure them.
Customize assertion name and description
You can customize assertion names and descriptions with dynamic field values using string interpolation.

CMC
Learn how CMC provides centralized visibility and monitoring of Nozomi Networks sensors.
- Introduction
  An overview of the Central Management Console (CMC).
- Installation Guide
  Information and resources on how to install the Central Management Console (CMC), and the different options and settings available.
- Administrator Guide
  Information and resources about the Administration section of the Central Management Console (CMC), and the tasks that you can do in this part of the software.
- User Guide
  Information and resources about the main features of the Central Management Console (CMC), and the tasks that you can do from the user interface (UI).
  - Sensors
    The Sensors page lets you view all of the sensors that you have in your system.
  - Alerts
    The Alerts page shows all the latest alerts in the system. It lets you view the alerts in different modes, and carry out actions on the alerts.
  - Assets
    The Assets page shows all the physical components and systems in the local network environment and their associated details. It also lets you perform actions on those assets. Depending on the nodes and components involved, assets can range from a simple personal computer to an operational technology (OT) device.
  - Queries
    You can use the Nozomi Networks Query Language (N2QL) syntax to create complex data processes to obtain, filter, and analyze lists of information from the Nozomi Networks software.
  - Smart Polling in CMC
    The Smart Polling page gives you a read-only view of Smart Polling.
  - Arc in CMC
    Arc™ is a host-based sensor that detects and defends against malicious or compromised endpoints, and insider attacks. You can use Arc sensors to aggregate data for analysis and reports, either on-premises, or in the Vantage cloud.
  - Reports
    The Reports page lets you manage, generate, schedule and view reports.
  - Assertions
    The Assertions page shows all the assertions and lets you configure them.
    - Assertion operators
    - Save an assertion
      You can save assertions to have them continuously executed in the system.
    - Customize assertion name and description
      You can customize assertion names and descriptions with dynamic field values using string interpolation.
    - Edit an assertion
      This lets you edit the details for an existing assertion.
    - Configure an assertion
      This lets you configure the execution interval of the assertions, in seconds.
    - Configure an assertion on links
      This lets you configure the scope of the assertion for the related links.
    - Configure an assertion on variables
      This lets you configure the scope of the assertion for the related variables.
  - Vulnerabilities
    The Nozomi Networks software continuously discovers vulnerabilities in monitored assets.
  - Administration
  - Personal settings
    The personal settings page lets you do actions that are specific to your profile.
  - Troubleshooting
- Maintenance Guide
  Information about the maintenance tasks of Central Management Console (CMC), to help you administer and maintain the solution in a production environment.
- Print format documentation
  A list of all the print-format documentation that is available for the Central Management Console (CMC).

Customize assertion name and description

You can customize assertion names and descriptions with dynamic field values using string interpolation.

About this task

When saving an assertion, you can use field placeholders in the name and description fields. These placeholders are replaced with actual values from your query results when alerts are generated. This lets you create more descriptive and context-aware assertion names and alert descriptions.

Procedure

In the top navigation bar, select icon > Assertions.
The Assertions page opens.
In the query field, enter a query.
Select Enter.
Select Save.
A dialog shows.
In the Name field, enter a name for the assertion. To insert a field value from your query, select the plus icon button next to the field.
A placeholder {{FIELD_NAME}} is inserted into the field with FIELD_NAME highlighted. Replace it with the actual field name from your query.
Tip:
Field names must match the fields returned by your query. For example, if your query returns host, name, or ip fields, you can use {{host}}, {{name}}, or {{ip}}.
In the Description field, enter a description. You can also use field placeholders here by selecting the plus icon button.
Example: The sensor {{host}} with model {{model}} has been offline for more than 15 minutes
Complete the remaining fields in the dialog and select Save.

Results

When the assertion generates an alert, the placeholders in the name and description are replaced with the actual values from the query results.

Example

If you save an assertion with the following configuration:

Name: Sensor offline: {{host}}
Description: The sensor {{host}} with model {{model}} has not synchronized in the last 15 minutes
Query: sensors | where minutes_ago(last_sync) > 15 | assert_empty

When a sensor with host = nozomi-guardian and model = V-SERIES fails the assertion, the generated alert will display:

Name: Sensor offline: nozomi-guardian
Description: The sensor nozomi-guardian with model V-SERIES has not synchronized in the last 15 minutes