Remote Execution fails with error 'Error initializing command - RuntimeError Could not establish connection to remote host using any available authentication method, tried publickey'

Solution Verified - Updated

Environment

  • Red Hat Capsule 6
  • Red Hat Satellite 6

Issue

  • Remote execution fails with the below error on the hosts that are registered to the capsule server.

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

Resolution

  • Run the below command to enable remote execution on the capsule cli if client is registered to the capsule server

    # satellite-installer  --enable-foreman-proxy-plugin-remote-execution-script

  • Distribute the foreman-proxy ssh public key of the capsule server to the client machine and run the below command from the capsule cli.

    # ssh-copy-id -i ~foreman-proxy/.ssh/id_rsa_foreman_proxy.pub user@host.example.com

  • Check if the satellite can DNS resolve the name of the content host. If not, need to add the below entries in the file `/etc/hosts' file or add the client and IP address in the DNS server for DNS resolution.

    # vi /etc/hosts
<IP Address> <client FQDN>

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

  • The remote execution feature is not enabled on the capsule server and the foreman-proxy ssh public key is not distributed to the client machine.

Diagnostic Steps

  • Need to check if the satellite server can perform a DNS resolution for the client hostname.

    nslookup client.example.com
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