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Posted to common-issues@hadoop.apache.org by "Sunil Govindan (JIRA)" <ji...@apache.org> on 2018/08/29 04:19:00 UTC
[jira] [Commented] (HADOOP-14295) Authentication proxy filter may
fail authorization because of getRemoteAddr
[ https://issues.apache.org/jira/browse/HADOOP-14295?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16595916#comment-16595916 ]
Sunil Govindan commented on HADOOP-14295:
-----------------------------------------
[~jeffreyr97] [~jojochuang]
This patch seems close to commit. Pls help to take a call on same as 3.2 is closeby.
> Authentication proxy filter may fail authorization because of getRemoteAddr
> ---------------------------------------------------------------------------
>
> Key: HADOOP-14295
> URL: https://issues.apache.org/jira/browse/HADOOP-14295
> Project: Hadoop Common
> Issue Type: Bug
> Components: common
> Affects Versions: 2.7.4, 3.0.0-alpha2, 2.8.1
> Reporter: Jeffrey E Rodriguez
> Assignee: Jeffrey E Rodriguez
> Priority: Critical
> Attachments: HADOOP-14295.002.patch, HADOOP-14295.003.patch, HADOOP-14295.004.patch, hadoop-14295.001.patch
>
>
> When we turn on Hadoop UI Kerberos and try to access Datanode /logs the proxy (Knox) would get an Authorization failure and it hosts would should as 127.0.0.1 even though Knox wasn't in local host to Datanode, error message:
> {quote}
> "2017-04-08 07:01:23,029 ERROR security.AuthenticationWithProxyUserFilter (AuthenticationWithProxyUserFilter.java:getRemoteUser(94)) - Unable to verify proxy user: Unauthorized connection for super-user: knox from IP 127.0.0.1"
> {quote}
> We were able to figure out that Datanode have Jetty listening on localhost and that Netty is used to server request to DataNode, this was a measure to improve performance because of Netty Async NIO design.
> I propose to add a check for x-forwarded-for header since proxys usually inject that header before we do a getRemoteAddr
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