The Kerberos Key Distribution Center (KDC) service used to authenticate the user.
The Kerberos properties are used when using SPNEGO or Windows Authentication. The driver will request session tickets and temporary session keys from the Kerberos KDC service. The Kerberos 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:
- KRB5 Config File (krb5.ini/krb5.conf): If the KRB5_CONFIG environment variable is set and the file exists, the driver will obtain the KDC from the specified file. Otherwise it will attempt to read from the default MIT location based on the OS: C:\ProgramData\MIT\Kerberos5\krb5.ini (Windows) or /etc/krb5.conf (Linux)
- Java System Properties: Using the system properties java.security.krb5.realm and java.security.krb5.kdc.
- 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.