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Issue description

 Description:  The job failed because ansible-testuser could not ssh with a password. I checked ssh access from the command line. the sshd_config file had been updated to allow password authentication but it appears the sshd service had not been restarted or reloaded. I reloaded it on each of servera and serverb and the the ansible job ran successfully. It appears that lab start ansible-controller-intro creates the ansible-testuser acounts but may not check the ssh access. I have been doing the GEs in order.. so also check the lab finish ansible-configure script. It appears to "restore SSH config file" but I wonder if it does the reload correctly. 

Steps to reproduce:

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Workaround:

Expected result: