Thanks! I'm wondering whether there are some public APIs for this function

On Wed, May 23, 2012 at 12:53 PM, Martin Visser <[email protected]>wrote:

> In Wireshark,  it uses DNS or what ever you manually have written in the
> "ethers" or "hosts" file. Whois only shows assignments from the various
> Internet Registries.
>
> You can of course infer names (say looking at the "Host:" header in a HTTP
> request) but this isn't done.
>
> Unfortunately their is no magic to do this.
>
> Regards, Martin
>
> [email protected]
>
>
> On 23 May 2012 20:00, nangergong <[email protected]> wrote:
>
>> HI, all:
>>
>>      I noticed that wireshark can show the host name(or website url) for
>> an ip address precisely. I need such a function which can convert an IP
>> address to the host name precisely. With linux command "whois", the result
>> is very coarse. Can anyone tell how wireshark did the conversion and can I
>> write some scripts or a small program to do this? I mean the input is an IP
>> address while the output is a host name or URL, Thanks!
>>
>>
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