setup an Active Directory environment

[djkast]

I am trying to setup an Active Directory environment

There is 1 root domain and 2 subdomains

A.com
| |
B.A.com C.A.com


-All users added to A.com I want to be able to login to all the servers attached to B and C

-I do not want the users added to B and C to be able to login to servers attached to A.

How can I do this? I understand I need to setup a on-eway trust.. but that doesn't users on A.com access to login to the servers attached to B and C

Help!

[JAMES_911]

Read the below method from the link to install and configure a new Active Directory installation in a laboratory environment that includes Windows Server 2003 and Active Directory. Note that you will need two networked servers that are running Windows Server 2003 for this purpose in a laboratory environment.

http://support.microsoft.com/kb/324753

And also read about delegating authority in Active Directory - http://technet.microsoft.com/en-us/m...directory.aspx