The documentation portal is undergoing maintenance. During this period, you can't create any new user credentials. If you do, you'll need to recreate the user credential after the maintenance period ends.
You can remove the host name and port number associated with a node. When you remove the node association, the node remains in the domain, but it is not associated with a host machine.
To associate a different host machine with the node, you must run the installation program or infasetup DefineGatewayNode or infasetup DefineWorkerNode command on the new host machine, and then restart the node on the new host machine.