Vsphere Default user and password - VMware
https://communities.vmware.com/t5/vSphere-Upgrade-Install/Vsphere-Default-user-and-password/td-p/1403053
Mar 20, 2017 · If you're talking about the vSphere ESXi, the default local user is root, but there is no default password, during the installation a password must be defined. Old vSphere ESXi versions can be installed without the root password, but to connected through the vSphere Client, the root password must be defined after the installation.---
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