there are a few steps and best practices that you need to follow to integrate ESXi host with Active Directory:
Synchronize the time between ESXi host and the Active Directory domain controller. This is important for ensuring the authentication and security of the communication between the ESXi host and the Active Directory server. You can use the NTP protocol to synchronize the time on your ESXi host with a network time server or a Microsoft Domain Controller.
Configure the DNS settings on your ESXi host. This is important for resolving the host names and IP addresses of the Active Directory servers and domain controllers. You can use the vSphere Client or the ESXi Shell to configure the DNS settings on your ESXi host.
Join the ESXi host to the Active Directory domain. This is the main step that allows you to add your ESXi host as a computer object in the Active Directory domain and authenticate it with the domain controller. You can use the vSphere Client, the ESXi Shell, or the PowerCLI to join the ESXi host to the Active Directory domain.
Configure the ESX Admins group on your Active Directory domain. This is an optional step that allows you to assign full administrative access to the ESXi host to a specific group of users in the Active Directory domain. By default, the ESX Admins group is used for this purpose, but you can change it to a different group if you want. You can use the vSphere Client or the ESXi Shell to configure the ESX Admins group on your ESXi host
