Server 2012 R2 SID

tech · 28-12-2015 06:00PM #1

hi

I have a few servers that appear to have to same SID on them, these are all configured and setup with APPS on them, so I dont want to run SYSprep on these, as it will blow them off the domain again and possiblly upset the existing configuration.

I know back on Server 2008 you could run NEW SID, is there some little tool / app I can run on Server 2012r2 to generate a new SID.

these joined the domain fine and appear to all ok but I would like a NEW SID just for peace of mind any ideas?

Thanks

testicle · 28-12-2015 06:05PM

SIDs are irrelevent these days. https://blogs.technet.microsoft.com/markrussinovich/2009/11/03/the-machine-sid-duplication-myth-and-why-sysprep-matters/

tech · 28-12-2015 06:14PM

hi Thanks for that, I had found that, but just wondering is there any tool to change it. ??

Even in VM same SID is ok?

ressem · 31-12-2015 01:20AM

Are any of these servers acting as domain controllers presently?
Domain controllers will have the same machine SID, a different object SID.

(The machine SID of the first promoted DC is assigned as the machine SID for following DCs)

From the Sysinternals article, 3rd last paragraph...

Every Domain has a unique Domain SID that’s the machine SID of the system that became the Domain’s first DC, and all machine SIDs for the Domain’s DCs match the Domain SID.

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If not, I'd be hesitant about anything other than the demote, sysprep /generalise, rejoin, promote. You can create an unattended.xml with a couple of lines to stop sysprep from mucking with drivers.
https://technet.microsoft.com/en-us/library/ff715820.aspx

There's commercial products like
http://www.stratesave.com/html/sidchg.html

but can't vouch for it.

tech · 03-01-2016 02:52PM

cool thanks doe your help

they are just all member server running APPs no Exchange Dc, or Exchange

Server 2012 R2 SID

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