Reverse Lookup Zone Missing

Discussion in 'Windows Small Business Server' started by Daveinfla, Jan 18, 2008.

  1. Daveinfla

    Daveinfla Guest

    Have a new customer with a server running SBS 2003 Standard R2. Whoever set
    it up originally did something to screw up the reverse lookup zone in DNS.

    The standard listing in the Reverse Zone which looks like the following was
    missing: Standard Primary Standard Primary Active Directory-Integrated Primary Standard Primary

    Actually the only thing listed was the wrong subnet, they had 192.168.16
    listed instead of 192.168.1 and the remaining entries were missing.

    I created a reverse lookup zone for 192.168.1 but it appears as:

    192.168.1.x Subnet Active Directory-Integrated Primary

    Not quite the same as above and it's missing the other 3 zones.

    How do I re-create the reverse lookup zone properly?


    Daveinfla, Jan 18, 2008
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  2. Daveinfla

    Daveinfla Guest

    The information was pulled from the same DNS Management Console you used.

    the may have been a fat finger from someone else, which is why
    I recreated it.

    I took a look at several SBS 2003 servers I have out there and they all seem
    to be slightly different.

    The first one was as described in my original post.

    Another has 192.168.1.x Subnet with the SOA and NS but has NO PTR records
    defined. What's with that?

    Next is the same as above but has the PTR records defined listing the full
    IP address of each workstation.

    The last one I looked at has the same but also has a second subnet defined
    as 192.168.x.x with NO PTR's in it. Another fat finger?

    The most common seems to be what you described, but what would cause the
    PTR's not to populate?

    And were did the server I describe in my first post get all the arpa
    entries? What's also interesting about it's reverse lookup subnet is the fact
    that it only lists the last octet of the IP address vs. the full IP address.
    I don't get it?

    Daveinfla, Jan 20, 2008
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  3. Hi Dave,

    Thanks for posting here.

    From your post, I understand that when creating a Reverse Lookup Zone, the
    following records were missing and no PTR record was created. If I am off
    base, please do let me know. Standard Primary Standard Primary Active Directory-Integrated Primary Standard Primary

    Regarding the above records, we can try the following steps to show or hide
    1. Open DNS Management console.
    2. Highlight your server name, click View menu, select Advanced.
    3. Check the Reverse Lookup Zone again.

    As I know, when you create the forward and reverse lookup zones, the DNS
    service automatically creates an "A" record for the DNS server. However, it
    does not create a PTR record, or reverse lookup record for the DNS server
    (SBS server). So you may need to add PTR records for your server and other
    computers manually.

    If you would like to update the PTR records automatically, please check the
    following configurations:

    I. Enable Dynamic Update on the DNS zone
    1. Right click the DNS zone you created and choose Properties.
    2. Under General tab, select "Secure only" for Dynamic updates.
    3. Click OK.

    II. DHCP configurations (if you have DHCP enabled on SBS server)
    1. Open DHCP Management console
    2. Right click your DHCP server or the scope and choose Properties. Click
    the DNS tab.
    3. Select "Enable DNS dynamic updates according to the settings below" and
    then select "Always dynamically update DNS A and PRT records"
    4. Click OK.

    For more information about create new DNS Zone and configure DNS dynamic
    updates , please refer to the following article:

    HOW TO: Create a New Zone on a DNS Server in Windows Server 2003

    How to configure DNS dynamic updates in Windows Server 2003

    I hope the info above helps. If you have anything unclear, please do let me

    Best regards,

    Shawn Shao
    Microsoft CSS Online Newsgroup Support

    Get Secure! -

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    Shawn Shao [MSFT], Jan 22, 2008
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