DNS problems: 'Can't find server name for address x.x.x.x : server

Discussion in 'Server Networking' started by mark, Jul 20, 2006.

  1. mark

    mark Guest

    Hey guys. When I do an nslookup on my DNS servers (primary and secondary) I
    get the following 'Cant find server name for address x.x.x.x : server failed
    Default server: unknown address: x.x.x.x '

    The address it lists is the current DNS server i'm on. I just set up my
    secondary DNS. Is it possible I did something wrong. Does it imply that it
    also isnt' working anymore? Thanks.
    mark, Jul 20, 2006
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  2. Hi Mark,

    What the message means is that your DNS server is unable to execute a
    reverse lookup of the IP address x.x.x.x. A reverse lookup gives you a name
    from an IP address. A forward lookup gives you an IP address when you input
    a name. Not all IP addresses have forward DNS, so this is not always a
    problem. However, DNS servers almost always have a reverse lookup name
    (reverse lookup name is also called a PTR record, which is short for
    "pointer" record). Therefore, you might have entered the IP address

    Greg Lindsay [MSFT]

    Disclaimer: This posting is provided "AS IS" with no warranties, and confers
    no rights.

    Greg Lindsay [MSFT], Jul 20, 2006
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