Log in to System Manager by using administrator credentials.
Navigate to ServicesInventory, and then click Manage Elements.
Do one of the following:
For a new Presence Services element, use the Import Kerberos Keytab File field to specify the keytab file.
For an existing Presence Services element, select the element, and then click Edit. Use the Import Kerberos Keytab File field to specify the keytab file.