Windows 2003 R2 DFS and DNS settings

Discussion in 'File Systems' started by Nikolay Unguzov, Jul 24, 2006.

  1. Hi,

    I have two domain controllers on two AD sites with activated DFS (DFS
    Managment in R2) replication and namespaces.
    It works fine, but I have a problem when one of the servers is down (WAN
    connection problems). Performance on other server is really slow...

    May be the problem is in DNS configuration? Here is my configuration:

    Domain: mycompany.local

    1. Office1
    Firewall 192.168.181.253
    DC: SecondServer.mycompany.local (192.168.181.5)
    AD Site: SecondSite (subnet 192.168.181.0/24)
    DNS on the server:
    - 192.168.181.5
    - 192.168.151.5
    - 192.168.181.253 (firewall - internet)
    DNS Server Forwarding:
    - 192.168.181.5
    - 192.168.151.5
    - 192.168.181.253
    DNS on the clients (by DHCP)
    - 192.168.181.5
    - 192.168.151.5
    - 192.168.181.253 (firewall - internet)

    2. Office2
    Firewall 192.168.151.253
    DC: MainServer.mycompany.local (192.168.151.5)
    AD Site: MainSite (subnet 192.168.151.0/24)
    DNS on the server:
    - 192.168.151.5
    - 192.168.181.5
    - 192.168.151.253
    DNS Server Forwarding:
    - 192.168.151.5
    - 192.168.181.5
    - 192.168.151.253
    DNS on the clients (by DHCP)
    - 192.168.151.5
    - 192.168.181.5
    - 192.168.151.253

    So the problem is when SecondServer goes down (because of rpoblems with
    WAN) - workstation in MainServer has a big performance issues when open
    files from DFS namespace.

    Please note tha MainServer is added as a domain controller later in time
    than SecondServer, the first DC was SecondServer. So my second question is
    how to make MainServer "primary"? I miss something....

    Nikolay Unguzov
     
    Nikolay Unguzov, Jul 24, 2006
    #1
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  2. Hello!

    It is not a DNS problem.
    You are looking for "FSMO Roles".

    Try checking the shares on the client computer.
    Share->property->DFS. is the nearest Server your DFS?

    Best
    Olaf
     
    Olaf Schinkel, Jul 24, 2006
    #2
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  3. Thanks, FSMO Roles is exactly what I need.

    Btw performance was a DNS problem - in Windows 2003 DNS is replicated
    automaticaly so using DNS server in other site as secondary DNS cause
    problems.
     
    Nikolay Unguzov, Jul 24, 2006
    #3
  4. Hello!
    So, are both DNS AD integrated?
    I have a net with 6 Servers over a WAN and i have no problems.

    Best
    OLaf
     
    Olaf Schinkel, Jul 26, 2006
    #4
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