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  1. #1
    Join Date
    Apr 2004
    Posts
    181

    Finding all subdomains that point to an IP?

    Hi there,

    Some clients pointed subdomains of different websites to the IP of a server whose IP address is going to change.

    How can we find all the domain entries that point to a given IP? Most do not have reverse DNS entries.

    Is it possible at all? Thanks.

  2. #2
    Join Date
    Sep 2000
    Location
    Alberta, Canada
    Posts
    3,146
    Why?

    The Server IP has nothing to do with the Client Domains, sub-domain or otherwise. It is the Nameservers they are using that counts. Once the Reseller updates their Nameserver with their new IPs all their Client Domains will automatically redirect to point to them.
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  3. #3
    Join Date
    May 2005
    Posts
    67
    By conventional means (dig) no.

    While this by no means is fool proof, if they have been around a while, you might find some useful information using http://www.whois.sc

    By entering the IP in question, it should list many of the various domains that are hosted on that IP.

  4. #4
    Join Date
    Oct 2003
    Location
    Long Island, New York
    Posts
    220
    I think you have to clarify the question. How are these "different" websites different, and how did the clients point their domains at your server?

    Are you saying that the clients are using their own separate nameservers?
    TWSites.com - Business Web Hosting Solutions & Server Management Since 2003

  5. #5
    Join Date
    Apr 2004
    Posts
    181
    Yes, they use separate nameservers.

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