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How to properly setup DNS for child domains ?

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  • How to properly setup DNS for child domains ?

    I'm clearly having problems within my domain, that may or may not have stemmed from DNS configuration.

    That being said, what's the correct way to setup DNS for the child domain ?

    root domain = 2k3 R2 FFL

    Two (2) DC's each running DNS

    Child Domain = win2k3 FFL

    1 Domain Controller Running DNS.

    Should i create stub zones in the root for the child's dnsdomain name ?

    Point the child DC's NIC settings to 1 DC in the root domain ?

    How to properly setup conditional forwarding ?

    As i understand it, i have two domains,

    harry.local

    child.harry.local.

    Within the child DC's DNS setting, i setup conditional forwarding to forward any lookup for harry.local to

    192.168.1.1
    192.168.1.2

    which are the DC's in the root domain ?

    I'm hopeful to get DNS configured correctly, then attach the replication issue i'm having.

  • #2
    Re: How to properly setup DNS for child domains ?

    on harry.local you create a delegation (sub domain) for child.harry.local. Right click the harry.local zone and select New Delegation.

    on child.harry.local you setup a conditional forwarder for harry.local

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    • #3
      Re: How to properly setup DNS for child domains ?

      what about the NIC settings on the DC in the child domain ?

      when and why would you use stub zones ?

      for confitional forward, put in harry.local on the child DNS server and point them to the IP addresses of the root DC/DNS servers -- correct ?

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      • #4
        Re: How to properly setup DNS for child domains ?

        NIC on the DC in the child domain should point to itself.

        Stub Zones and Conditional Forwarders both do the same thing just in a different way. You can use either one.

        Yes point the CF on the child DNS server to the parent DNS server IP.

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        • #5
          Re: How to properly setup DNS for child domains ?

          i have stub zones configured at the root DNS server for the child DNS zone.

          I have the child domain AD/DNS server pointing to the root DNS above in its NIC, and have forwarders set to point to 2 root DNS servers at the root domain ( cross domain, cross-site)

          When i delete the stub zones, and try to add the Delegation from the root's DNS fwd zone, it doesn't resolve the remote(child DNS server). I look at the Nameservers tab for the zone and it has UNKNOWN for the remote DC. I change the IP manually, and then i'm able to add the delegation.

          However, when i add the delgation -- the folder has this grey color and only contains one record ?

          that doesn't seem healthy/normal at all.

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          • #6
            Re: How to properly setup DNS for child domains ?

            That's normal. A delegation it supposed to be a gray folder with just a few NS records.

            It tells the client, "hey I don't have info on that domain but here's a list of Name Servers that do, go there."

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