Upgrading from Server 2000 to 2003 Ent, other misc changes

Discussion in 'Server Migration' started by Kyle Brantley, Jul 12, 2004.

  1. Just realized this newsgroup exists...

    Okay, first off, let me describe my current setup, and then what I want
    to convert it to.

    General:
    -25 client computers (win2k/xp, active directory managed)
    -Roughly 3 VPN connections, managed via 2k server (port forwarding on
    routers)
    -2 hardware routers, providing two sources of internet connectivity (yay
    for redundancy)
    -Note that both of these routers are bridged and load-balanced
    transparently via transparent linux
    gateway/firewall/load-balancer/whatever else you'd like to call it.
    (irrelevant for this, but might be useful to know)

    Servers/other nice things:
    -1x Windows 2000 server (Computer A)
    -Providing active directory, DNS, DHCP, and file/print sharing
    (read: it goes down, the company's connectivity goes down)
    -1x linux transparent bridging gateway router (irrelevant for this, but
    might be useful to know)
    -1x linux general server, RAID 1, other nice things (Computer B)


    What I want to happen:
    -Win2k3 (coming soon to a server near me) as a primary domain
    controller. Also this will be the new file server. (This will be computer C)
    -Win2k server as backup domain controller, and VPN server
    -Computer B (linux general) providing DNS and DHCP

    What exactly I'm looking for here with the windows servers:
    -Any useful information about AD changes from win2k server to 2k3 server
    (read: stuff that might/will break as a result)
    -How to change the PDC over to the new 2k3 server without disrupting
    connectivty (to the domain login at least)
    -The most effective method of changing file servers (client computers
    have drives mapped to the computer name) with least downtime (copying
    roughly 25GB of data to a new computer and using that computer as the
    primary file server) - I'm thinking a DFS root, but unsure (file sharing
    will be moved from computer A to computer C)
    -Along the lines of DFS, just how effecetively it could impliment a
    load-balanced (yet synchronized) file server setup

    What exactly I'm looking for here with the linux servers:
    -This is a Microsoft newsgroup, I'm not expecting copy+paste config
    files for me to use, rather just general information on how DNS and DHCP
    is implimented with AD. So:
    -Active directory deals heavily with DNS and DNS updates. Under an
    active directory setup, say we have example.com for the domain. I also
    want dynamic DNS entries for all of the computers there (IPs assigned
    via DHCP).
    -Assuming that we JUST have the example.com domain, no sub-level
    forests and whatnot, what records would need to be updated in a normal
    day-to-day use? Or rather, what records would be updated period?
    -Would DNS updates, for say a new client computer after DHCPing,
    originate from the client computer, from the domain controller(s), or
    from the DHCP server?
    -This kind of bleeds into my previous question, but I've noticed in
    the win2k dhcp server there's an option to always update the DNS. Is
    that a policy of sorts sent to the client, is that performed by the DHCP
    server, or by the domain controller?

    I believe that's all...if anyone has anything relevant to this, or just
    some general tips and pointers for the migration, they're just as welcome.
     
    Kyle Brantley, Jul 12, 2004
    #1
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  2. Hi Kyle,

    Thanks for your posting here.

    1. Please refer to the following documents to upgrade Windows 2000 domain
    to Windows 2003 domain.

    Upgrading Windows 2000 Domains to Windows Server 2003 Domains
    http://www.microsoft.com/resources/documentation/WindowsServ/2003/all/deploy
    guide/en-us/Default.asp?url=/resources/documentation/windowsserv/2003/all/de
    ployguide/en-us/dssbf_upwn_overview.asp

    How to upgrade Windows 2000 domain controllers to Windows Server 2003
    http://support.microsoft.com/?kbid=325379

    Upgrading from Windows 2000 Server to Windows Server 2003
    http://www.microsoft.com/windowsserver2003/upgrading/w2k/default.mspx

    Upgrading to Windows Server 2003
    http://www.microsoft.com/technet/prodtechnol/windowsserver2003/technologies/
    directory/activedirectory/upgadc14.mspx

    2. Not like WINNT domain, there is no PDC and BDC in Windows 2000/2003
    domain. All the Domain Controllers running Windows 2000/2003 are equal in
    domain. Windows 2000/2003 AD is multi-master, so each DC keeps a copy of
    Active Directory data. You can refer to the following article to transfer
    all the FSMO roles to another DC.

    HOW TO: View and Transfer FSMO Roles in Windows Server 2003
    http://support.microsoft.com/?id=324801

    3. To move file server, you can try the File Server Migration Toolkit.

    http://www.microsoft.com/windowsserver2003/upgrading/nt4/tooldocs/msfsc.mspx

    References:

    White Paper:
    http://www.microsoft.com/windowsserver2003/upgrading/nt4/tooldocs/msfst_over
    view.mspx

    Windows Server 2003: Scalable File Server Consolidation
    http://www.microsoft.com/windowsserver2003/techinfo/overview/fileconsol.mspx

    4. DFS can replicate data between link replicas and will refer a user to a
    replica in their site at "random". DFS is for load balancing and even
    fault tolerance.

    As for the DNS server in AD, it should support SRV records and dynamic
    updates. Here is a decent article which discusses Win2K DDNS and Unix
    interoperability.
    http://www.win2000mag.com/Articles/Index.cfm?ArticleID=7874

    More documents you might want to look at is
    http://research.microsoft.com/collaboration/university/up_content/BIND.doc

    Microsoft Windows 2000 DNS and UNIX BIND DNS Interoperability
    http://support.microsoft.com/default.aspx?scid=kb;en-us;324858

    In general, we recommend that you use Windows DNS server since there are
    many resources can assist in troubleshooting.

    If the DNS server support dynamic update, the clients and DCs will register
    the relevant records on DNS server. If you use the DHCP to assign dynamic
    IP address to clients, you can set "Automatically update DHCP client
    information in DNS", and enable dynamic update on DNS server.

    Reference:

    HOW TO: Configure DNS Dynamic Update in Windows 2000
    http://support.microsoft.com/?id=317590

    816592 HOW TO: Configure DNS Dynamic Update in Windows 2003
    http://support.microsoft.com/?id=816592

    Wish it helps.

    Regards,
    Bob Qin
    Product Support Services
    Microsoft Corporation

    Get Secure! - www.microsoft.com/security

    ====================================================
    When responding to posts, please "Reply to Group" via your newsreader so
    that others may learn and benefit from your issue.
    ====================================================
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    Bob Qin [MSFT], Jul 13, 2004
    #2
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  3. Yeah, you're right with the multi-master domain controller, I forgot
    about that stuff since I'm only running a single domain controller at
    the moment.

    However, I guess I didn't clarify this (at all, after re-reading my
    post): Win2k domain controller + win2k3 domain controller: will anything
    break? How effective is the reverse compatability? Is there anything
    that I should really know before attempting this? Is it even possible?
    Looking over the title of those links, they all contain the word
    'upgrade', and not much about having a multi-master domain with Win2k
    server and 2k3 server.
     
    Kyle Brantley, Jul 13, 2004
    #3
  4. Hi Kyle,

    Windows 2000 DC can coexist with Windows 2003 DC in the Windows 2000 mixed
    (Default) and Windows 2000 native mode. You need to run ADprep tool to
    extend the AD schema before you add Windows 2003 DC in domain. You can find
    the detailed information in the article of 325379.

    How to upgrade Windows 2000 domain controllers to Windows Server 2003
    http://support.microsoft.com/?kbid=325379

    In addition, you can also refer to the following article for the Domain
    Functional Level in Windows 2003.

    322692 HOW TO: Raise Domain and Forest Functional Levels in Windows Server
    2003
    http://support.microsoft.com/?id=322692

    Have a nice day!

    Regards,
    Bob Qin
    Product Support Services
    Microsoft Corporation

    Get Secure! - www.microsoft.com/security

    ====================================================
    When responding to posts, please "Reply to Group" via your newsreader so
    that others may learn and benefit from your issue.
    ====================================================
    This posting is provided "AS IS" with no warranties, and confers no rights.
     
    Bob Qin [MSFT], Jul 14, 2004
    #4
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