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Domaine And IP's

Posted on 2009-07-08
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i have domain in windows 2003 and ISA Server  2006 and 70 user recently my company joint with more than 3 company's with more than 400 users and with different servers some of them is windows 2008.
could i make all that servers as 1 domain and how let DHCP give each sub domain IP renge and i have range of 470 users and 30 servers
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Question by:3mrahmed
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Expert Comment

by:rhandels
ID: 24801324
Ok, this isn;t really the easiest one from my point of view..

I'll try and give you a head start on it.

First off, try to figure out how you will be able to connect both networks to easother. Are they on different physical places?? If so, you will need to create some sort of VPN tunnel to make sure the domains are able to connect to each other. That's the first thing you should do.

Second. What are the domains names now?? Is it something like abc.com and xyz.com? Would you like to merge the domains to 1 domain? Would you like to make 1 sub domain? If you are going to use any of these methods, you will need to demote 1 domain and add it to the other domain. Another option is to make a forest root trust between both domains so they are able to contact eachother.

And last but not least.. If you have multiple sites, just create multiple DHCP servers with different scopes. Each computer will first look at it's own site for a DHCP server and will pick an address there. If you have multiple sites and multiple DHCP servers you will also have a fallback DHCP server if 1 fails at any of the sites..

This is just a good starting point, nothing more nothing les...
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Author Comment

by:3mrahmed
ID: 24801898
they will be by the end of month in one building and hole data center will be @ one location in the center of the building one company will still in it place with 10 users and no domine
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Expert Comment

by:rhandels
ID: 24802044
So you will have 1 large domain then?? And it's a merger between 2 companies?? Then you only need to have 1 DHCP server in place (i would suggest 2 though for High availibility) and they will get their IP addresses then..

At the end it's up to you what you would like to do with the merger of the 2 domains. Either pick the largets one, keep that in place and migrate the domain your not using anymore into the largest one you will be using (this might take some time) or just create a root forest trust between both domains.
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Author Comment

by:3mrahmed
ID: 24802176
i will create new domain and let every company has it sub domain or large domain with more than 2 DC and 2 ISA server for availability but problem is 500 users , how to  get IP's from DHCP, how i can divide range of IP on them in one domain
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Accepted Solution

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rhandels earned 1500 total points
ID: 24802335
Hey,

If you have 2 domains, just make sure that the DHCP server for the domain is set up to use the ip adresses you want there. You can create multiple DHCP scopes on a DHCP server for dividing ther DHCP range, or just make sure to have 1 DHCP server in each domain, that should do the trick..
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