Download(upload) file to VCSA via SCP (ssh)

In the Bash shell, run this command to change the default shell to Bash:

chsh -s /bin/bash root

Use WinSCP to upload the certificate files to the vCenter Server Appliance.

To return to the Appliance Shell, run this command: chsh -s /bin/appliancesh root

https://kb.vmware.com/s/article/2107727