Agent Repositories

Agent repositories can store data from Tenable Nessus Agents (identified by agent ID) or OT Security (identified by OT Security UUID).

An agent ID uniquely identifies agent-detected assets that may share a common IP address.

OT Security assigns UUIDs to assets to uniquely identify them, since not all operational technology assets have IP addresses. Then, Tenable Security Center uses the UUIDs to uniquely identify OT Security data in Tenable Security Center. For more information about viewing OT Security data in Tenable Security Center, see OT Security Instances.

For more information, see Add a Repository.

Agent Repository Options

Option

Description

General

Name

The repository name.

Description

(Optional) A description for the repository.

Access

Organizations

Specifies which organizations have access to the vulnerability data stored in the repository.

If groups are configured for the organization, Tenable Security Center prompts you to grant or deny access to all of the groups in the organization. For more granular control, grant access within the settings for that group.

Advanced Settings

Generate Trend Data

When enabled, Tenable Security Center generates trend data by taking periodic snapshots of the cumulative database. Trend data is displayed in some Tenable Security Center tools (e.g., trending line charts and trending area charts).

Tenable Security Center also produces differential data (snapshot comparison data), which improves performance when displaying trend data in Tenable Security Center tools.

Tip: Disable this option to reduce your disk space usage.

Days Trending

Specifies the number of days of cumulative vulnerability data that you want Tenable Security Center to display in dashboard and report vulnerability trending displays.

Enable Full Text Search

When enabled, Tenable Security Center includes vulnerability text in periodic snapshots of .nessus data for vulnerability trending purposes. For more information about the Vulnerability Text filter component, see Vulnerability Analysis Filter Components.

Vulnerability Data Lifetime (Data Expiration Settings)

Active

The number of days you want Tenable Security Center to retain agent scan vulnerability data stored in agent repositories. The default value of this option is 365 days.

Compliance

The number of days you want Tenable Security Center to retain audit compliance data stored in agent repositories. The default value of this option is 365 days.

Mitigated

The number of days you want Tenable Security Center to retain mitigated vulnerability data. The default value of this option is 365 days.