Change log

Open this mode by clicking the corresponding tab above the main area of the TNI window.

In this mode, you can select an asset or a group of assets in the Network tree to view all changes detected by TNI in their hardware, software, and other properties over time.

The concept

Every time an asset is scanned, TNI creates a snapshot of it and places it into the Storage alongside the previous snapshots. You can switch between different snapshots in the Viewer & reports mode using the date/time box next to the asset name:

You can manage snapshots from the Snapshots tab. The snapshot auto-deletion policy can be configured in the root Storage Properties. By default, TNI stores up to 10 snapshots per asset and removes the ones that are more than 90 days old (except for the oldest one).

See Snapshots.

To build the change log, TNI compares the available snapshots. The change log is not stored separately. It is generated on the fly from the available snapshots each time it is viewed.

Reading a change log

To build a change log, select one or more assets or a group in the Network tree.

TNI displays the results of the snapshot comparison as a nested list.

The timeline is divided into Intervals, sorted from the most recent to the oldest. Each interval represents the period between two adjacent snapshots and displays their corresponding dates and times. It also shows at a glance how many changes were detected during that period.

Intervals contain events grouped by object type.

Events represent elements that have been:

Added, Removed, or Changed.

The following are examples of Change log events:

Almost every piece of data in the snapshots is monitored for changes. However, some changes on the actual devices may not be reflected in the change log.

Log summary, searching, filtering, and printing

Before generating the log, you can change the history depth to view changes from a specific number of snapshots or select categories in the sidebar to view changes only for those objects. Reducing the history depth or selecting fewer objects can significantly speed up log generation, especially if you store a large number of snapshots or have many selected assets.

After the log is generated, the Sidebar displays a full summary of logged changes.

The numbers on the right indicate how many items of each type are present in the change log.

To hide all categories of a certain type, clear its checkbox .

To view only categories of a certain object type, hover over the corresponding type and click the Hide the rest/Show all button on the right. Click it again to quickly reveal the full log.

Use Instant Search to filter the log: press Ctrl + F or click the search bar at the top and enter a search term.

Click Printable reports next to the search bar to print the change log. The printable version reflects all active filters.