Mini per to join computers to domain

Hello Expert,
I have a temporary person technician that comes in once in a while to do work for us.I want to assign him with the permission to join computers into our domain and remove the computers from our domain, no other access rights.
I use windows 2008 Domain Controller.

This is what I've done so far...
1 - created a user account for the technician.
2 - On the top domain name in Active Directory i right click and selected Delegation control wizard and Added that user into the delegate control.
3 - From the Delegate common tasks i selected only "Join a computer to the domain"
4- finish

I have tested the above configuration and came to understand that the user is not able to join computers into the domain,This is where I'm stuck... I want to know what else permissions i needed to assign to this user so that he can only join computers into our domain and Absolutely no other permissions

Waiting for your support.
Thank you.
Who is Participating?
VB ITSConnect With a Mentor Specialist ConsultantCommented:
There's a few extra permissions you need to enable. You also need to use the delegate control wizard on the Computers container as this is where the computer object gets created when a machine joins the domain.

- In Active Directory Users and Computers, right click on the Computers container and then click Delegate Control..
- Click Add to add the account you created for your technician
- Select Create a custom task to delegate in the next window
- Select Only the following objects in the folder then tick the Computer objects box in the list
- Tick both the Create selected objects in this folder and Delete selected objects in this folder boxes
- In the next window tick these options under Show these permissions:
- General
- Property-specific
- In the Permissions box tick these options:
- Reset Password
- Read and write account restrictions
- Validated write to DNS host name
- Validated write to service principal name
Delegate-Control---Permissions-1.pngDelegate-Control---Permissions-2.png- Click Next then Finish when done
- Now try joining a computer to the domain
smpvmAuthor Commented:
Hello VB ITS,

You are the real Expert, perfect. It is working fine. Everyone happy with my solution infact the credit goes to you :)

smpvmAuthor Commented:
Best solution
VB ITSSpecialist ConsultantCommented:
Thanks smpvm! Happy to help :)
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