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Create and manage Firewall rules and groups on a client system

  • Published on Sep 14, 2026
  • 1 minute(s) read
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You can use firewall rule groups to group a set of rules with a single purpose.

Before you begin

Make sure that the interface mode for the Trellix Endpoint Security (ENS) Client is set to Full access or log on to the Trellix Endpoint Security (ENS) Client as administrator.

Firewall processes rules from top to bottom, regardless of whether they are in groups. The groups and rules appear in priority order in the Firewall Rules table. You can't sort rules by column.

Rules and groups that you configure from the Trellix Endpoint Security (ENS) Client might be overwritten when the administrator deploys an updated policy.



Task

  1. Open the Trellix Endpoint Security (ENS) Client.

  2. Click Firewall on the main Status page.

    Or, from the Action menu GUID-A3B12F55-7EE9-4519-8FCA-9ACA85C3661F-low.png, select Settings, then click Firewall on the Settings page.

  3. Use these tasks to manage firewall rules and groups.

    To do this...

    Follow these steps

    View the rules in a firewall group.

    Click 715425_spr.png.

    Collapse a firewall group.

    Click GUID-58EC8E79-F669-4C5E-BB8E-8775B24DCA01-low.png.

    Change an existing rule.

    Note

    You can change rules in the User added group only.

    1. Expand the User added group.

    2. Double-click the rule.

    3. Change the rule settings.

    4. Click OK to save your changes.

    View an existing rule in any group.

    1. Expand the group.

    2. Select the rule to view its details in the bottom pane.

    Create a rule.

    1. Click Add Rule.

    2. Specify the rule settings.

    3. Click OK to save your changes.

    The rule appears at the end of the User added group.

    Create copies of rules.

    1. Select the rule or rules and click Duplicate.

      Copied rules appear with the same name at the end of the User added group.

    2. Change the rules to change the name and settings.

    Delete rules.

    Note

    You can delete rules from the User added and Adaptive groups only.

    1. Expand the group.

    2. Select the rule or rules and click Delete.

    Create a group.

    1. Click Add Group.

    2. Specify the group settings.

    3. Click OK to save your changes.

    The group appears in the User added group.

    Move rules and groups in and between groups.

    Note

    You can move rules and groups in the User added group only.

    To move elements:

    1. Select elements to move.

      The grip GUID-C7C0F5E7-D473-4741-8C59-1DC7CC545889-low.png appears to the left of elements that can be moved.

    2. Drag and drop the elements to the new location.

      A blue line appears between elements where you can drop the dragged elements.

  4. Click Apply.