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Table of Contents

Administration Guide

Comparing different configuration files

You can compare the changes or differences between two versions of a configuration file by using the Diff function.

The Diff function behaves differently under certain circumstances.

For example, when a device is first added to the FortiManager system, the FortiManager system gets the configuration file directly from the FortiGate unit and stores it as is. This configuration file is version/ID 1.

If you make changes to the device configuration in Device Manager and select Commit, the new configuration file is saved as version/ID 2. If you use the Diff icon to view the changes/differences between version/ID 1 and version/ID 2, you will be shown more changes than you have made.

This happens because the items in the file version/ID 1 are ordered as they are on the FortiGate unit. Configurations of version/ID 2 are sequenced differently when they are edited and committed in Device Manager. Therefore, when you compare version/ID 1 and version/ID 2, the Diff function sees every item in the configuration file as changed.

If you take version/ID 2, change an item and commit it, the tag is changed to version/ID 3. If you use Diff with version/ID 2 and version/ID 3, only the changes that you made are shown. This is because version/ID 2 and version/ID 3 have both been sequenced in the same way in Device Manager.

To compare different configuration files:
  1. Go to the device database. See Displaying the device database.
  2. In the device database, go to Dashboard > Summary.
  3. Locate the Configuration and Installation widget.
  4. In the Total Revisions row, click the Revision History button.

    The Configuration Revision History dialog box is displayed.

  5. Select a revision, and click Revision Diff in the toolbar.
  6. In the Compare Database <name> Against section, select another version for the diff.
  7. In the Diff Output section, select Show Full File Diff, Show Diff Only, or Capture Diff to a Script.

    Show Full File Diff shows the full configuration file and highlights all configuration differences.

    Show Diff Only shows only configuration differences.

    Capture Diff to a Script downloads the diff to a script.

  8. Click Apply.

    If you selected show diff, the configuration differences are displayed in colored highlights. If you selected capture to a script, the script is saved in your downloads folder.

Comparing different configuration files

You can compare the changes or differences between two versions of a configuration file by using the Diff function.

The Diff function behaves differently under certain circumstances.

For example, when a device is first added to the FortiManager system, the FortiManager system gets the configuration file directly from the FortiGate unit and stores it as is. This configuration file is version/ID 1.

If you make changes to the device configuration in Device Manager and select Commit, the new configuration file is saved as version/ID 2. If you use the Diff icon to view the changes/differences between version/ID 1 and version/ID 2, you will be shown more changes than you have made.

This happens because the items in the file version/ID 1 are ordered as they are on the FortiGate unit. Configurations of version/ID 2 are sequenced differently when they are edited and committed in Device Manager. Therefore, when you compare version/ID 1 and version/ID 2, the Diff function sees every item in the configuration file as changed.

If you take version/ID 2, change an item and commit it, the tag is changed to version/ID 3. If you use Diff with version/ID 2 and version/ID 3, only the changes that you made are shown. This is because version/ID 2 and version/ID 3 have both been sequenced in the same way in Device Manager.

To compare different configuration files:
  1. Go to the device database. See Displaying the device database.
  2. In the device database, go to Dashboard > Summary.
  3. Locate the Configuration and Installation widget.
  4. In the Total Revisions row, click the Revision History button.

    The Configuration Revision History dialog box is displayed.

  5. Select a revision, and click Revision Diff in the toolbar.
  6. In the Compare Database <name> Against section, select another version for the diff.
  7. In the Diff Output section, select Show Full File Diff, Show Diff Only, or Capture Diff to a Script.

    Show Full File Diff shows the full configuration file and highlights all configuration differences.

    Show Diff Only shows only configuration differences.

    Capture Diff to a Script downloads the diff to a script.

  8. Click Apply.

    If you selected show diff, the configuration differences are displayed in colored highlights. If you selected capture to a script, the script is saved in your downloads folder.