ODBC Driver for SQL Server

Build 20.0.7587

Kerberos KDC

The Kerberos Key Distribution Center (KDC) service used to authenticate the user.

Data Type


Default Value



The Kerberos properties are used when using Windows Authentication. The driver will request session tickets and temporary session keys from the Kerberos Key Distribution Center (KDC) service. The Kerberos Key Distribution Center (KDC) service is conventionally colocated with the domain controller. If Kerberos KDC is not specified the driver will attempt to detect these properties automatically from the following locations:

  • Java System Properties: Kerberos settings can be configured in Java using the config file krb5.conf, or using the system properties java.security.krb5.realm and java.security.krb5.kdc. The driver will use the system settings if KerberosRealm and KerberosKDC are not explicitly set.
  • Domain Name and Host: The driver will infer the Kerberos Realm and Kerberos KDC from the configured domain name and host as a last resort.
Note: Windows authentication is supported in JRE 1.6 and above only.

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Build 20.0.7587