You can delete a single DNS override record or multiple DNS override records together.
To delete a single DNS override record, select a DNS override record, and from the Quick Actions menu, click Delete. If the DNS override record is not associated with any web application, in the Confirmation dialog box, click Delete.
If the DNS override record is associated with one more web application, the Delete DNS Override Record page displays the impacted web applications.
Note: Once you delete the DNS override record, the web applications that include the DNS override record must be manually updated.
To delete multiple DNS override records, select DNS override records, and from the Actions menu, click Delete.
In the Delete DNS Override Records page, select the Delete only the selected dns override records that do not affect other objects check box to delete only the DNS override records that are not associated with any web application.