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Guardian
Learn how Guardian provides comprehensive asset inventory and network visibility for OT and IoT environments.
User Guide
Information and resources about the main features of Guardian, and the tasks that you can do from the user interface (UI).
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.
Expert mode
You can view alerts in expert mode to give you a detailed view of the alerts in the system. This lets you filter, sort, and analyze the information in detail.

Guardian
Learn how Guardian provides comprehensive asset inventory and network visibility for OT and IoT environments.
- Introduction
  An overview of Guardian.
- Installation Guide
  Information and resources on how to install Guardian, and the different options and settings that are available.
- Administrator Guide
  Information and resources about the Administration section of Guardian, and the tasks that you can do in this part of the software.
- User Guide
  Information and resources about the main features of Guardian, 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.
    - Standard mode
      You can view alerts in standard mode to give you an overview of the latest anomalies.
    - Expert mode
      You can view alerts in expert mode to give you a detailed view of the alerts in the system. This lets you filter, sort, and analyze the information in detail.
    - View alerts in standard mode
      You can view alerts in standard mode to give you an overview of the latest anomalies.
    - View alerts in expert mode
      You can view alerts in expert mode to give you a detailed view of the alerts in the system. This lets you filter, sort, and analyze the information in detail.
    - Closing alerts
      When you close an alert, or incident, a dialog lets you select a reason, and specify the learning process.
    - Actions menu
      The Actions menu gives you access to all the actions that you can do for the related alert.
    - Edit a playbook associated with an alert
      A playbook associated with an alert can be modified. A change you make on the playbook only affects the playbook related to that specific alert.
  - 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 Guardian
    The Smart Polling page lets you view and manage Smart Polling.
  - Arc in Guardian
    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.
  - Network
    The Network page gives you access to multiple pages that show nodes, links, sessions in tabular format and graphs and traffic in a graphical format.
  - Process
    Process is a set of repeatable functions that a business does to deliver a core value.
  - 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.
  - Time machine
    Time machine lets you load a snapshot, which is a previously saved state, and go back in time, to analyze the data from a past situation. You can load a single snapshot and use the platform as usual or load two snapshots and compare the user interface to highlight changes.
  - 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.
- Maintenance Guide
  Information about the maintenance tasks of Guardian, 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 Guardian.

Expert mode

You can view alerts in expert mode to give you a detailed view of the alerts in the system. This lets you filter, sort, and analyze the information in detail.

Expert mode shows a comprehensive table layout, with details on the alerts and incidents listed, which include:

Addresses
Labels
The roles of the involved nodes, zones, protocol, and ports used in the involved transactions, and more

Expert mode — Figure 1. Expert mode

Export

The Export icon lets you export the current list in either comma-separated value (CSV) or Microsoft Excel format.

Group by incident

The Group by incident icon lets you group alerts by incident. This will show incidents, and hide all the alerts that belong to it.

Filter

The filter icon opens a list of items that you let you filter the results.

Live

The Live toggle lets you change live view on, or off. When live mode is on, the page will refresh periodically.

Refresh

The Refresh icon lets you immediately refresh the current view.

Count by field

The ∑ Count by field dropdown lets you select a data field on which to group and count the alerts.

Column selection

The columns selection icon lets you choose which columns to show or hide.