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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).
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.
Graph
The Graph pages gives a graphical representation of the nodes in the environment.
Main network graph
The main network graph shows a graphical representation of the nodes in your environment.

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.
  - 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.
    - Nodes
      The Nodes page lets you view all the network nodes in your environment and perform actions on them.
    - Links
      The Links page shows all the links in your environment.
    - Sessions
      A session is established at a certain point in time, and later turned down. An established communication session might involve more than one message in each direction.
    - Graph
      The Graph pages gives a graphical representation of the nodes in the environment.
      - Main network graph
        The main network graph shows a graphical representation of the nodes in your environment.
        Magic wand
        The magic wand icon opens a wizard to help filter the graph and view only the desired information to help you reduce visualized data from large graphs.
        Layout
        The Layout dropdown lets you select a layout for the graph.
      - Zones/Topology graph
        The Zones/Topology graph shows a visualization of the network topology or zones.
    - Traffic
      The Traffic page shows charts with information about throughput, protocols, and open transmission control protocol (TCP) connections.
    - Graph controls
      A list of the different control options in the graph view.
  - 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.

Main network graph

The main network graph shows a graphical representation of the nodes in your environment.

PDF

This icon lets you export a portable document format (PDF) report which contains the graph, as it is currently shown on the page.

?

This icon opens the legend for link and nodes based on the selected perspective.

Legend — Figure 1. Legend

Filters

This indicates active graph filtering, when present. Filters can be from the filter bar (see R and S below), or activated from the zone/topology graph when you select a link/node in the zone/topology graphs. Once a filter is enabled with a value, the graph is automatically updated. If more than one filter is enabled, then a logical and criteria is applied. Only nodes that satisfy all of the specified filters are shown.

Note:

If a node passes the filters, then all of the directly connected nodes are shown in the graph. For example if a specific internet protocol (IP) filter is used, then the specified node is shown along with all the nodes connected to it.

Reset

This resets customizations and reloads the data.

Live / refresh

The Live icon lets you change live view on, or off. When live mode is on, the page will refresh approximately every five seconds.

Time

These icons let you select an activity time range.

For more details, Magic wand.

Nodes

This dropdown lets you select node visualization configuration options.

Links

This dropdown lets you configure visualization options.

Layout

This dropdown lets you select a layout for the graph. For more details, see Layout.

Pause-play

The pause-play icon lets you pause, or restart the motion of the graph.

Increase-Decrease icon size

The increase and decrease icons lets you change the size of the icons in the graph.