There are two built-in Skyline Collector accounts - admin and root.
The admin account is the primary account to interact with the Skyline Collector. This account is used to log into the Skyline Collector user interface. The password for the admin account is set during the initial configuration of the appliance.
The root account must only be used for updating the appliance through the Virtual Appliance Management Interface (VAMI). The VAMI can be accessed at the following address: https://skyline_collector_ip_address_or_fqdn:5480. The password for the root account is set during the deployment of the virtual appliance using the Deploy OVF Template wizard within vCenter Server.
Using the root account to log in to Skyline Collector through the console must only be performed when troubleshooting in coordination with VMware Global Support Services (GSS). Logging on and changing information inside the appliance with the root account is not supported.