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Old 19th September 2007, 00:25
catdude catdude is offline
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Most ISPs don't automatically provide reverse mapping to the IP addresses they assign you. And it's likely that the reverse-DNS authority for the netblock your IP is a part of belongs to your ISP, or possibly to their upstream.

In order to get a reverse DNS lookup to resolve to your domain name you would most likely have to talk to your ISP's tech support department and ask them to set up the reverse mapping.
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