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Posted to common-dev@hadoop.apache.org by "Ravi Prakash (JIRA)" <ji...@apache.org> on 2016/06/28 00:22:57 UTC

[jira] [Resolved] (HADOOP-13295) Possible Vulnerability in DataNodes via SSH

     [ https://issues.apache.org/jira/browse/HADOOP-13295?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Ravi Prakash resolved HADOOP-13295.
-----------------------------------
    Resolution: Invalid

> Possible Vulnerability in DataNodes via SSH
> -------------------------------------------
>
>                 Key: HADOOP-13295
>                 URL: https://issues.apache.org/jira/browse/HADOOP-13295
>             Project: Hadoop Common
>          Issue Type: Bug
>          Components: security
>            Reporter: Mobin Ranjbar
>
> I suspected something weird in my Hadoop cluster. When I run datanodes, after a while my servers(except namenode) will be down for SSH Max Attempts. When I checked the 'systemctl status ssh', I figured out there are some invalid username/password attempts via SSH and the SSH daemon blocked all incoming connections and I got connection refused.
> I have no problem when my datanodes are not running.



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