[jira] [Commented] (KAFKA-7630) Clarify that broker doesn't need scram username/password for delegation tokens

["Andras Beni (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/KAFKA-7630?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16687615#comment-16687615 ] 

Andras Beni commented on KAFKA-7630:
------------------------------------

[~asasvari], [~viktorsomogyi] you might want to take a look at this.

> Clarify that broker doesn't need scram username/password for delegation tokens
> ------------------------------------------------------------------------------
>
>                 Key: KAFKA-7630
>                 URL: https://issues.apache.org/jira/browse/KAFKA-7630
>             Project: Kafka
>          Issue Type: Improvement
>          Components: documentation, security
>    Affects Versions: 2.0.0
>            Reporter: Andras Beni
>            Priority: Minor
>
> [Documentation|https://kafka.apache.org/documentation/#security_token_authentication] on delegation tokens refers to SCRAM [configuration|https://kafka.apache.org/documentation/#security_sasl_scram_brokerconfig] section. However, in a setup where only delegation tokens use SCRAM and all other authentication goes via Kerberos, {{ScramLoginModule}} does not need {{username}} and {{password}}.
> This is not obvious from the documentation.
> I believe the same is true for setups where SCRAM is used by clients but inter broker communication is GSSAPI or PLAIN, but have not tested it.
>  



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