I have an environment with two ESXi servers and a center server, which I think is a vm on one of the ESXi servers.The VCenter password is unknown. Is it permissible to use the sphere client to connect to each exit host and administer it without involving

I have an environment with two ESXi servers and a center server, which I think is a vm on one of the ESXi  servers.The VCenter password is unknown. Is it permissible to use the sphere client to connect to each exit host and administer it without involving the vcenter??