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  1. Hadoop Common
  2. HADOOP-13295

Possible Vulnerability in DataNodes via SSH

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    Details

    • Type: Bug
    • Status: Resolved
    • Priority: Major
    • Resolution: Invalid
    • Affects Version/s: None
    • Fix Version/s: None
    • Component/s: security
    • Labels:
      None
    • Target Version/s:
    • Flags:
      Important

      Description

      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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            • Assignee:
              Unassigned
              Reporter:
              mobinranjbar Mobin Ranjbar
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                Resolved: