Remote execution job failed with "Error initializing command: RuntimeError - Could not establish connection to remote host using any available authentication method, tried publickey" in Red Hat Satellite 6

Environment

• Red Hat Satellite 6
• Red Hat Capsule 6

Issue

• The remote execution job failed with the following error when the client host registered to the Red Hat Satellite or Capsule 6.

    Error initializing command: RuntimeError - Could not establish connection to remote host using any available authentication method, tried publickey
  
  

Resolution

• Ensure in the affected client host in /etc/ssh/sshd_config file the PubkeyAuthentication is set to yes.

1. Edit the /etc/ssh/sshd_config file in the affected client host to change the PubkeyAuthentication from no to yes.

# vi /etc/ssh/sshd_config
 ...
 
  PubkeyAuthentication no        <<<=== Change 'no' to 'yes'

2. After modifying the file, restart the sshd services on the client host and initiate a remote execution job.

 # systemctl restart sshd 

• Refer to the article 7135322 , if a similar error is observed on the Red Hat Enterprise Linux 7 host remote execution job.

• Reach out to the This content is not included.Red Hat Technical Support, if the issue still persists and further investigation is required.

For more KB articles/solutions related to Red Hat Satellite 6.x Remote Execution Issues, please refer to the Red Hat Satellite Consolidated Troubleshooting Article for Red Hat Satellite 6.x Remote Execution Issues

Root Cause

• In the affected client host, the hardening parameter is applied in /etc/ssh/sshd_config that prevents the public key authentication even though the SSH key is being shared. When the PubkeyAuthentication is set to no, the SSH server does not allow users to authenticate using public key authentication.

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