You can upload the truststore file.
Prerequisite
You have the Technical configuration administrator function privilege.
Procedure
Click Configuration.
Click User Management.
Click the arrow next to LDAP.
Click General settings.
Click Truststore. You must have generated a truststore file.
Click Upload. The Truststore dialog opens. Select the truststore file you want to use and click Upload.
Select the relevant file.
You have uploaded a truststore file