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Upgrading Server Compatibility Question


We are looking at purchasing a new HP server it will have Windows Server 2011 Standard (x64) on it, we can just call it "SERVER#1" and it will be on DOMAIN#1.  SERVER#1 will be a Domain Controller/ File Server.  We are trying to upgrade another server we will call SERVER#2  that we have laying around which is a Dual Xeon 2.4 x86 and it will be on DOMAIN#2.  I think I can only put Windows Server 2003 and not 2008 or 2011 and it will replace the D.C. at a remote location on DOMAIN#2.

I have concerns about the users from DOMAIN#2 being able to access resources on SERVER#/DOMAIN#1 and vice versa, because the CAL's are different for 2003/2008 and 2011

I also want to make sure that there are not any other problems I might be over looking.

Other Network spec for DOMAIN#1 are as follows

Additional Servers on DOMAIN#1
QTY 1: Windows 2003 Server Standard,  SQL Server 2000, and IIS 6 (used for website)
QTY 1: Windows 2003 Server Standard,  (2) SQL Server 2000 database  (used for internal programs and accounting)
QTY 1: Windows 2000 Server, SQL Server 2000 (I.T. Server)

Clients on DOMAIN#1 are all running Windows XP
Clients on DOMAIN#2 are all running Windows 2000/XP

Currently both Domain controllers are Windows NT 4.0.  That is why I have so many questions.  I want to make sure that  Windows 2000 clients work with Server 2003,2008 or 2011 Server as a Domain Controller
Server HardwareWindows Server 2008Windows Server 2003

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Darius Ghassem

8/22/2022 - Mon
Darius Ghassem

Currently there is not a Windows 2011 Standard edition you have SBS 2011 which is different.

The above clients will work with the above version of server edition.

You will need to purchase CALs for new server that provided licensing for clients to connect. In Windows 2008 Server R2 you do not need to install CALs they are actually just for documentation for auditing purposes.


So on our SERVER#2 that we will put 2003 or 2008 on I don't have to worry about them being able to access the other domain?

Just to make sure that I have my question clarified.  If the are 10 CALs on SERVER#2 for DOMAIN#2 because there are 10 users and SERVER#1 with 2011 has 50 CAL because there are 50 users.  Both sides of the domain should be able to access resource on the others server without having to purchase additional CALs for the other Domain?

Darius Ghassem

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