dns.cache Best Practices

Discussion in 'DNS Server' started by SB, Nov 11, 2009.

  1. SB

    SB Guest

    Greetings all,

    Our DNS servers have been recently configured to forward external lookups to
    our ISPs. The Root Hints tabs have been emptied on all DNS servers and
    dns.cache have been renamed so the servers wouldn't automatically populate
    the Root Hints tab. Our DNS is Active Directory Integrated.

    When our DNS servers start, they list two events 1000 and 1004, as we've
    renamed dns.cache and the server can't find the file. According to the
    internal help, if a server is a root DNS server for an organization its Root
    Hints tab should be empty.

    If all internal DNS servers in the organization are also DCs, and they are
    hosting the same root zone, are they are all considered to be the root for
    the zone? What is considered the Best Practice regarding the contents of the
    Root Hints tabs?

    TIA,

    - S
     
    SB, Nov 11, 2009
    #1
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  2. I would just leave the Root hints in the list. Besides, if you have two
    Forwarders listed, the timeout will be reached before it may ever get to the
    Root hints anyway.

    See if this helps to repopulate a Windows 2000 DNS. It should also work for
    2003 and newer. Actually with 2003 and 2008, you click the Copy button and
    specify an external DNS (such as 4.2.2.2) to populate the Root hints.

    Replacing root hints with the Cache.dns fileYou may experience one or more
    of the following symptoms:
    http://support.microsoft.com/kb/249868

    More info on EventID 1004 and 1000:
    http://eventid.net/display.asp?eventid=1004&eventno=4010&source=DNS&phase=1
    http://eventid.net/display.asp?eventid=1000&eventno=1832&source=DNS&phase=1


    --
    Ace

    This posting is provided "AS-IS" with no warranties or guarantees and
    confers no rights.

    Please reply back to the newsgroup or forum for collaboration benefit among
    responding engineers, and to help others benefit from your resolution.

    Ace Fekay, MCT, MCITP EA, MCTS Windows 2008 & Exchange 2007, MCSE & MCSA
    2003/2000, MCSA Messaging 2003
    Microsoft Certified Trainer

    For urgent issues, please contact Microsoft PSS directly. Please check
    http://support.microsoft.com for regional support phone numbers.
     
    Ace Fekay [MCT], Nov 12, 2009
    #2
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