The VMware vSphere Authentication Proxy service provides support for joining unattended ESXi hosts to an Active Directory domain by using an account with delegated privileges, enhancing security for PXE-booted hosts and hosts that are provisioned using Auto Deploy.

Property Default Value Description
Domain - Active Directory domain to which to join the ESXi hosts.
Domain User - Active Directory account with delegated domain join privileges used to join ESXi hosts.
Domain User Password - Password for the account specified in Domain User.