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From "Akira Ajisaka (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-14146) KerberosAuthenticationHandler should authenticate with SPN in AP-REQ
Date Thu, 22 Jun 2017 11:14:00 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-14146?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16059168#comment-16059168
] 

Akira Ajisaka commented on HADOOP-14146:
----------------------------------------

This commit broke build in JDK7. Would you fix this in branch-2 and branch-2.8?
{noformat}
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3.1:compile
(default-compile) on project hadoop-auth: Compilation failure
[ERROR] /Users/ajisaka/git/hadoop/hadoop-common-project/hadoop-auth/src/main/java/org/apache/hadoop/security/authentication/util/KerberosUtil.java:[341,18]
org.apache.hadoop.security.authentication.util.KerberosUtil.DER is not abstract and does not
override abstract method remove() in java.util.Iterator
{noformat}

> KerberosAuthenticationHandler should authenticate with SPN in AP-REQ
> --------------------------------------------------------------------
>
>                 Key: HADOOP-14146
>                 URL: https://issues.apache.org/jira/browse/HADOOP-14146
>             Project: Hadoop Common
>          Issue Type: Bug
>          Components: security
>    Affects Versions: 2.5.0
>            Reporter: Daryn Sharp
>            Assignee: Daryn Sharp
>             Fix For: 2.9.0, 3.0.0-alpha4, 2.8.2
>
>         Attachments: HADOOP-14146.1.patch, HADOOP-14146.2.patch, HADOOP-14146.3.patch,
HADOOP-14146.patch
>
>
> Many attempts (HADOOP-10158, HADOOP-11628, HADOOP-13565) have tried to add multiple SPN
host and/or realm support to spnego authentication.  The basic problem is the server tries
to guess and/or brute force what SPN the client used.  The server should just decode the SPN
from the AP-REQ.



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