Description:

Provides a mechanism for specifying a Keytab and a Principal that other components are able to use in order to perform authentication using Kerberos. By encapsulating this information into a Controller Service and allowing other components to make use of it (as opposed to specifying the principal and keytab directly in the processor) an administrator is able to choose which users are allowed to use which keytabs and principals. This provides a more robust security model for multi-tenant use cases.

Tags:

Kerberos, Keytab, Principal, Credentials, Authentication, Security

Properties:

In the list below, the names of required properties appear in bold. Any other properties (not in bold) are considered optional. The table also indicates any default values, and whether a property supports the Expression Language Guide.

Name	Default Value	Allowable Values	Description
Kerberos Keytab			Kerberos keytab associated with the principal. Requires nifi.kerberos.krb5.file to be set in your nifi.properties Supports Expression Language: true (will be evaluated using variable registry only)
Kerberos Principal			Kerberos principal to authenticate as. Requires nifi.kerberos.krb5.file to be set in your nifi.properties Supports Expression Language: true (will be evaluated using variable registry only)

State management:

This component does not store state.

Restricted:

Required Permission	Explanation
access keytab	Allows user to define a Keytab and principal that can then be used by other components.

System Resource Considerations:

None specified.