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Block Applications

You can block either all users or selected users from accessing an application. The block operation requires the listed policy rules to be edited to block one or more users from accessing an application. View policy changes by clicking the policy name or view affected devices by clicking the device count. You see only policies permitting this traffic in the past 30 days.

Note:

Starting in Junos Space Security Director Release 21.1, when unified policy rules permit the traffic, selecting block action creates block rules in the appropriate unified policy.

To block an application:

  1. Select Monitor > Applications.

    The Application Visibility page is displayed.

  2. Click the APPLICATIONS tab.

    The top 50 applications are displayed.

  3. In Chart View, hover over an application you want to block.

    A pop up window is displayed with information on the number of sessions, bandwidth, number of blocks, risk level, category, characteristics, top five users, view all users link, and options to block applications and users.

    Note:

    When you click the number of sessions link, the All Events page is displayed. It displays the events that generated those sessions.

    Click the View All Users link to display the users accessing the application.

  4. Click Block Application to block users from accessing the application.

    The Block Application page is displayed with the policies that contain the rules required to block the application. The listed policies will be edited to block all users from accessing the application.

    Note:

    You can also select a user you want to block and click Block User(s).

    The Block Users page is displayed with policies that contain the rules required to block the selected user from accessing the application.

  5. Click a policy to preview the policy details.

    The Policy Changes Preview page is displayed with information on the number of rules added, modified, and deleted. You can preview the policy details. You can attach or add a schedule under the Rule options column.

  6. Click OK.
  7. Click Save to save your changes.
  8. Click Publish to publish your policies.
  9. Click Update to update your policies on devices.

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