TFS,
It is a very very very wise thing that you want to add an additional Domain
Controller to your environment. This is absolutely a good thing.
Especially if you are not up to speed with WIN2000 Active Directory.
Here is the big picture:
Install a second WIN2000 Server machine in your environment. Make sure that
it points to the first Domain Controller ( assuming that you are running DNS
on that DC ) in the TCP/IP Configuration settings ( specifically in the DNS
area ). Then, simply run dcpromo on that machine and there you have
it.....a second Domain Controller. You need to make sure that you are
"adding an additional Domain Controller to an existing Domain" when you go
through that process.
Now, once that has finished make sure that you then go into Add/Remove
Programs and install DNS. I assume that you are running Dynamic DNS on the
first DC. I would do the same with this one. BTW - Dynamic DNS is the same
thing as Active Directory Integrated DNS. That simply means that you really
do not need to allow zone transfers as the information is 'transferred via
Active Directory Replication ( Domain NC ).
Once that is up and running I would start messing around with DHCP. Go
ahead and add it via Add/Remove Programs. Make sure that you have already
changed the range on the first one and then add the remaining % to this one
( as per the other poster's suggestion....MS does recommend 80/20 IIRC ).
Just make sure that the scope Options ( 003, 006 and 015 - and possibly 044
and 046 if you are running WINS ) now reflect the new information.
Please do not misunderstand me by this but it seems that you do not have a
very good grasp on Active Directory. You might be well served by setting up
a lab and playing with all of this. Set up a similar situation to what you
have at work and add a second Domain Controller and add DNS and DHCP. This
will be a big help to you when you do this 'live'!
--
Cary W. Shultz
Roanoke, VA 24012
Microsoft Active Directory MVP
http://www.activedirectory-win2000.com
http://www.grouppolicy-win2000.com