Configure Kerberos security (Optional)
When DLM Engine service is installed on a secured cluster, Ambari requires KDC administrator credential in order to setup DLM Engine service keytab.
![](../concepts/images/dlm_configure_kerberos_credential.png)
When DLM Engine service is installed on a secured cluster, Ambari requires KDC administrator credential in order to setup DLM Engine service keytab.