When to use "Always dynamically update DNS A and PTR records?

Discussion in 'DNS Server' started by Ewan, Jun 11, 2005.

  1. Ewan

    Ewan Guest

    hi,

    I'm studying towards 70-291, and am unclear on one of the DNS options when
    setting up how DHCP integrates with it.
    I can't see why/when I should use "Always dynamically update DNS A and PTR
    records"
    As far as I can see, using a combination of "Dynamically update DNS A and
    PTR records only if requested by the DHCP clients" & "Dynamically update DNS
    A and PTR records for DHCP clients that do not request updates ...for
    example... NT4.0"

    can anyone explain what the difference is?

    thanks
    ewan
     
    Ewan, Jun 11, 2005
    #1
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  2. Ewan

    Herb Martin Guest

    I'm studying towards 70-291, and am unclear on one of the DNS options when
    No, not quite since the "always" is part of updating for those
    more modern clients that could (theoretically) update for themselves.
    It is sometimes difficult to give concrete examples for why
    the Microsoft developers gave us so many choices on this
    dialog, but remember: More choices are better (up to a point)
    than not enough choices.

    For this one imagine: You have some clients that need to be
    updated on a DNS, they are modern clients and THINK they
    can do their own update, BUT they aren't really in the domain.
    (Workgroup machines).

    Don't ask me why anyone would set this up but it COULD happen.

    With secure updates these workgroup machines cannot update
    themselves even though they might try (and fail.)
     
    Herb Martin, Jun 12, 2005
    #2
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  3. Ewan

    Ewan Guest

    thanks for the concrete example - i neither can see why anyone would want to
    set this up, but at least now i can see a scenario where it could be used.
    ewan

     
    Ewan, Jun 12, 2005
    #3
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