After you complete this procedure, ssh can be restarted in any of the following scenarios:
After a terminal session is closed
After a new terminal session is opened
After a system is restarted
After too much time has elapsed, to refresh ssh
To restart ssh
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On the source installation system (system1), bring the private key into the shell environment.
system1 # exec /usr/bin/ssh-agent $SHELL
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Make the key globally available for the user root
system1 # ssh-add
