DNS Forward Lookup Zone has 2 PCs with the same IP address

Discussion in 'DNS Server' started by JCCIT, Aug 28, 2008.

  1. JCCIT

    JCCIT Guest

    I have a single domain running Windows Server 2003 standard and two DCs both
    running DNS AD integrated. In trouble shooting I have found that after
    running the fallowing commands and then shut down several PCs and then
    starting them up again that I have one or two Host A records in the forward
    lookup zone with the same IP address.
    ipconfig /flushdns
    ipconfig /release

    All of the DHCP leases have the correct IP address as well as the reverse
    lookup zone PRT records but not the Host A records. I am able to correct the
    problem by manually removing the bad Host A record, but it is a real pain and
    very hard to keep track of. Can anyone enlighten me to what I have done
    JCCIT, Aug 28, 2008
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  2. JCCIT

    JCCIT Guest


    Thanks for information it appears to have resolved the issue.
    JCCIT, Sep 3, 2008
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  3. JCCIT

    tex Guest

    not for me, I have my dhcp in the group, I have configured the scavange but
    I find same ip for different pc in the reverse lookup zones
    tex, Nov 13, 2008
  4. In

    Since you didn't post any specifics about your setup, I'm not sure. But I
    can tell you that if DHCP registered the records, it will clean them up.
    Under DHCP properties, DNS tab, is DHCP set to force update for both forward
    and reverse records? If not, then DHCP doesn't own it. You'll need to
    manually delete those records after you change the settings.

    Ace Fekay [Microsoft Certified Trainer], Nov 15, 2008
  5. JCCIT

    tex Guest

    ok thanks Ace, I'm going to try


    tex, Nov 17, 2008
  6. For urgent issues, you may want to contact Microsoft PSS directly. Please
    check http://support.microsoft.com for regional support phone numbers.
    Let me know if you have any problems.
    Ace Fekay [Microsoft Certified Trainer], Nov 22, 2008
  7. JCCIT

    tex Guest

    Now seems to be ok.


    tex, Nov 25, 2008
  8. In
    That's good to hear!

    Ace Fekay [Microsoft Certified Trainer], Nov 26, 2008
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