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Windows Server 2000/2003 Thread, Moving a DC to a new network in Technical; Hi, I've been given the job of moving a Windows 2003 DC to a new physical location (different building) and ...
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    Moving a DC to a new network

    Hi,

    I've been given the job of moving a Windows 2003 DC to a new physical location (different building) and hence, a different network. The server is the DC and provides DNS for the network. It provides no other critical services to the network.

    What's the best way of moving it?

    Can I just move it, re-IP it, change the DNS records to match the new address, then point all our network devices to the new address to use as DNS? then I'm done?

    This is the first time I will have undertaken a big move like this and would like it to go smoothly!

    Thanks

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    Is it going to part of the same domain, separate domains or child domain for example?

    Are the buildings linked via fibre?

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    Is it your only DC?

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    I wish they were linked by fibre!!! It's just a VPN linking them at the moment, it will still be a part of the same domain.

    ...and yes, it's our only DC for this domain. An hour or so downtime is acceptable during the day today.
    Last edited by DLAS; 30th April 2012 at 11:44 AM.

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    So when you remove the server from Site A to Site B, will there be any server in Site A?

    Ideally you should have DCs in each physical building, so in the event the VPN link goes down, both sites can continue working with only critical information travelling up and down the VPN link.

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    There won't be a server in Site A after the move. The buildings are both on fixed circuits so hopefully the VPN should be reliable enough to last a couple of weeks until we get the clearance to install a fibre link between the 2 buildings. It's been up and running already with no interruptions for the last month or so. Unfortunately we just don't have the in house hardware to create and setup another DC right now...

    Appreciate this is far from ideal but at the minute I don't have much choice as the network it's sat on is soon to be removed so any advice would be hugely appreciated.

    Thanks


    EDIT:

    From doing some reading today, my current plan would be:

    Move server to new building
    Re-IP the server
    run ipconfig /registerdns on the server
    run dcdiag to check for any errors
    change the IP on all of our network equipment that needs DNS to point to the new IP address
    Last edited by DLAS; 30th April 2012 at 05:30 PM.

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    So when the server's in Site B, what do users in Site A require? Will they be logging on with roaming profiles, mapped drives, deployed printers etc etc... it could potentially add a big strain on that single VPN link, although if it's only for weeks, you should be OK.

    Ideally (even with a fibre link) you should budget for a physical DC at each site. With 2008/2008 R2, you can even have RODC (Read Only Domain Controllers), which is useful as users can authenticate, but no one can mess or change anything critical with the server.

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    Ok, thanks Michael.

    I may be able to get an old W2K3 server to use as an additional DC at the other site (I'll have to clear some crap off it first) and promote that until the network is fully defunct and we no longer need it. Are there any resources you'd recommend reading before I go ahead? It's something I've never done before but a quick google makes it look like it's pretty easy.

    Site A already has a print server and file server, as you say the profiles could be the biggest strain.

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    - Install a new installation of Windows Server 2003 SP2
    - Add to the domain, then promote to a DC
    - I'd recommend adding DHCP Server, File and Print server roles

    This would mean users can access as much information as they need locally instead of down the VPN link. The only thing going down the link should be internet traffic (optional), and servers replicating critical domain information. If the link goes down, then in theory everyone could carry on working whilst you get the VPN link back online.

  10. Thanks to Michael from:

    DLAS (2nd May 2012)

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    What consequences are there from not promoting from a fresh install?

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    Quote Originally Posted by DLAS View Post
    What consequences are there from not promoting from a fresh install?
    Instability for one, or out-of-date software components. If you install as new and patch, you know exactly what's installed.

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    Ok, thanks Michael, you've been a big help.

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    You're most welcome Good luck!

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    Ah, in fact I have 1 more question:

    How do client computers decide which DC to authenticate to? Is it calculated in the least number of hops or something similar?

    I've just performed a clean install on an old server, joined it to the domain and promoted it to a DC (which all went smoothly). I just want to be sure it's all working as intended now.

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    Quote Originally Posted by DLAS View Post
    What consequences are there from not promoting from a fresh install?
    When you promote a server all the local accounts disappear. On an established server it's more likely there's something running that's dependent on a local account.

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