Domain controller failed

I have a scenario where a domain controller has failed, all disks in array crashed due to over heat, question is, if u build a new server with same domain and users, will clients login as normal or will all clients need to be taken of domain and re added as new computers

Thanks in advance
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DeepinInfrastructure Engineer Commented:
By building a new domain with the same network name it is still a new network. The clients will have to be rejoined to the domain.

Don't use the same name I would advise you use another domain name otherwise you will encounter endless problems.

if you have any backups you can restore from there
Kamal KhaleefaInformation Security SpecialistCommented:
users and devices wont be able to authenticate with new domain even with same name
you will need to re add all objects to new domain
but first try to recover your data from HDD's using ReclaimMe software it will restore all your data even with defective HDD (depend on raid used)
all you need is one folder containing AD DB
Rakesh KapoorCommented:
New Domain on new Server even with the same number would assign different GUID. If you create new domain then you need to rejoin all the computers and servers to the domain. Users on existing servers would not be able to login.
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Can you confirm that this is your only domain controller and you have no backup of the server at all.

For the client computers rebuilding the domain/forest means indeed and as already mentioned that
- Client computers have to be disjoined from the domain, rebooted, and joined to the domain again.

Please keep in mind that also other things have to be configured again:
- Users/passwords
- AD groups
- GPO's
- DNS server, reverse zone setup
- AD groups that have been used on member servers (Local groups/NTFS security etc.)

If you prefer to keep the same domain name then I do not see much problems to use this same domain name again as all identifieres will be different when you do a complete rebuild.

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Prashant ShrivastavaConsultantCommented:
Can you please specify how the disks were crashed - recovering will be a better option than doing everything from scratch if you have important data on the machine. How big is your network that will help me providing you a right solution.
techsolve1Author Commented:
Thanks for the info, confirmed what i suspected!
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Windows Server 2012

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