VMware ESX/ESXi 4.1 and Active Directory Integration

1. Configure your ESX/ESXi IP address and FQDN:
   
   
2. Goto: Configuration tab > Authentication Services > Properties
   
   
3. Type your domain and you OU if you want:
   
   
4. Type your Domain User and Password
   
   
5. See you Active Directory Domain.
   
   
6. Now you can manage your security groups by adding some groups under “Assign Permissions”:
   
   
7. Assign Administrator permissions to Domain Admins:
   

More Info:
Configure a Host to Use a Directory Service