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Thread: Unable to resolve DNS name while trying to join domain

  1. #1
    tmosely Guest

    Unable to resolve DNS name while trying to join domain

    I am currently adding new workstations to our network and have been using a
    workgroup. When trying to join the domain I get a DNS error stating that it
    cannot resolve the domain name. I am not using the DNS services on the server
    I am using the ISP's DNS. Unsure as to how to resolve the issue. Help
    --
    tmosely

  2. #2
    Danny Sanders Guest

    Re: Unable to resolve DNS name while trying to join domain

    If this is an AD domain, it MUST have a DNS server for the AD domain.
    Since you didn't give the OS version I'll have to guess. See:

    Best Practices for DNS Client settings in Windows 2000 server and in Windows
    Server 2003

    http://support.microsoft.com/default...b;en-us;825036



    How to configure DNS for Internet access in Windows 2000

    http://support.microsoft.com/default...b;en-us;300202



    How to configure DNS for Internet access in Windows Server 2003

    http://support.microsoft.com/default...b;en-us;323380





    Setting Up the Domain Name System for Active Directory

    http://support.microsoft.com/default...b;en-us;237675



    hth

    DDS



    "tmosely" <todd@brazosvos.com> wrote in message
    news:9B583941-5C2F-4F3C-854E-8765BA34C64A@microsoft.com...
    >I am currently adding new workstations to our network and have been using a
    > workgroup. When trying to join the domain I get a DNS error stating that
    > it
    > cannot resolve the domain name. I am not using the DNS services on the
    > server
    > I am using the ISP's DNS. Unsure as to how to resolve the issue. Help
    > --
    > tmosely




  3. #3
    Phillip Windell Guest

    Re: Unable to resolve DNS name while trying to join domain

    "tmosely" <todd@brazosvos.com> wrote in message
    news:9B583941-5C2F-4F3C-854E-8765BA34C64A@microsoft.com...
    >I am currently adding new workstations to our network and have been using a
    > workgroup. When trying to join the domain I get a DNS error stating that
    > it
    > cannot resolve the domain name. I am not using the DNS services on the
    > server
    > I am using the ISP's DNS. Unsure as to how to resolve the issue. Help


    Since you are going from the Workgroup to a Domain you are going to have to
    throw out a *lot* of the thinking and the methodologies you currently
    use,...and DNS is a *big* one.

    1. You can't use the ISP's DNS any longer

    2. Every single last host on the LAN *must* use the AD/DNS on the Domain
    Controller. Even the Domain Controller uses only itself.

    3. The AD/DNS machine (the Domain Controller) must be allowed by the
    Firewall to make outbound DNS queries anonymously. With most
    "home-user-NAT-boxes" [commonly and incorrectly called "routers"] this will
    be already true since they do not typically out-of-the-box filter outgoing
    traffic.

    4. Within the configuration of the DNS Services on the Domain Controller you
    have 2 choices:
    a. Add the ISP's DNS to the Forwarders List
    OR
    b. Skip the Forwarder, and let the Service default to using Root
    Hints

    Most people use the Forwarder method.



    Now,...DHCP...

    Turn off the DHCP services completely on the "home-user-NAT-boxes" if that
    is what you are doing. You will never us that again. You need to use an
    Active Directory Authorized DHCP Service.

    Install the DHCP Service on the Domain Controller. It is common practice to
    run DNS, DHCP, and WINS (but *nothing* else) on the Domain Controller.
    Create and configure the correct DHCP Scope and "authorize" and "activate"
    it. This DHCP Service will automactally handle keeping the DNS Service
    updated with the IP Config given to the DHCP Clients.

    Here are some guidelines that I always propose for DHCP. These are my
    own,...they are not out of a textbook.

    1. Never have subnets larger than 254 hosts (/24 bit mask). Ethernet
    efficiency degrades after 250-300 hosts although it is less obvious with
    1000mbps -vs- 100mbps -vs- 10mbps.
    2. One Scope per subnet
    3. Use the full subnet IP range in the scope
    4. Use Exclusions to limit the range of IP#s actually given out by the
    Scope. You can have mulitple Exclusions.
    5. Use Server Options instead of Scope Options for items that are global to
    the whole LAN.
    6. Use Scope Options for things that are only unique to that particular
    Scope.
    7. If you create an DHCP Reservations,...keep them to a minumum or none at
    all. If there are a lot of them you might as well just statically assign
    the config to the Clients and forget it.

    --
    Phillip Windell
    www.wandtv.com

    The views expressed, are my own and not those of my employer, or Microsoft,
    or anyone else associated with me, including my cats.
    -----------------------------------------------------



  4. #4
    Meinolf Weber [MVP-DS] Guest

    Re: Unable to resolve DNS name while trying to join domain

    Hello tmosely,

    Change to the domain's DNS server. Domain internal do not use the ISP's DNS
    server on any machine. Configure the FORWARDERS in the DNS management console
    with the ISP's DNS server.

    Best regards

    Meinolf Weber
    Disclaimer: This posting is provided "AS IS" with no warranties, and confers
    no rights.
    ** Please do NOT email, only reply to Newsgroups
    ** HELP us help YOU!!! http://www.blakjak.demon.co.uk/mul_crss.htm


    > I am currently adding new workstations to our network and have been
    > using a workgroup. When trying to join the domain I get a DNS error
    > stating that it cannot resolve the domain name. I am not using the DNS
    > services on the server I am using the ISP's DNS. Unsure as to how to
    > resolve the issue. Help
    >




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