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Article ID: 128885, created on May 27, 2016, last review on Jul 14, 2018

  • Applies to:
  • Plesk Automation 11.5


Linux-based service node installation task was failed with error:

 SSH communication error: SSH auth via password failed.


Necessary communications ports are closed.


  1. Refer to the article to find the list of the ports required to be opened for proper Plesk Automation functioning.

  2. Correct the firewall rules accordingly.

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