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server2003 2 domains - I need to migrate one into the other

Can anyone give me any clues as to the best way to do this?  I have one domain (the smaller) that I need to migrate to the other (the bigger).  The smaller one has approx 25 users, and runs SQL for a schools package for students and all the extra that goes with that such as general ledger etc.  I want to keep the domain controller as a member server (demoted) but move all the users into the main domain and set up security and so on there.  The smaller domain runs on a different range of Ip numbers.  I believe I can just add a scope to the bigger domain and put that range in there.  I presume I won't need DNS running on the demoted server or DHCP?  How would other people tackle this problem and can anyone advise any papers I can read.   Any help would be appreciated.  What about profiles and home directories and a multitude of other things that I have probably not thought of?
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sfxit
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sfxit
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Jay_Jay70Commented:
there are some methods from micrsoft, the easiest being use the Active Directory Migration Tool

basically you create a trust between two domains and then migrate the accounts over
http://www.computerperformance.co.uk/w2k3/W2K3_ADMT.htm

then you would install sql on your large domain, detach the databases and move them over

after that you can demote your old DC, and join it as a member server or an additional DC for redundancy, Wallah!
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sfxitAuthor Commented:
Thanks for that, but I really don't want to have to do anything with SQL, can I not leave it on the server I am going to demote or will this cause problems?  Do not know enough about SQL
Thanks Jay
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Jay_Jay70Commented:
ah my apologies, that should be fine, just watch out for the accounts that the databases may be running under, if its ntbased authentication then you will have to change, otherwise you will be fine - as a precaution backup the databases
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sfxitAuthor Commented:
Thanks so much for that info I have just joined this site I am rapt !!!
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Jay_Jay70Commented:
Thats a pleasure mate, i had a greate xperience when i first started here as well, it was through Robwill (you can see him on the left) he helped solve something that i was stumped on and i have been hooked ever since :)
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sfxitAuthor Commented:
Yes I am definately hooked !
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