If you get a dialog box, select the "default configuration panel" to obtain a similar image to the one below:
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For an offending ssh key error, please remove the old key by typing the following command: ssh-keygen keygen -R "hostname" (e.g. ssh-keygen -R psnxserv01)
MAC Clients must install XCode and XQuartz.You can download XQuartz from https://www.xquartz.org. Otherwise, you will get the following error: