> Sorry if this is a stupid question, but I've been receiving a lot of
> spam these days with addresses such as this one: http://3520566060
>
> (sorry about the link.. it's a link to an adult site that has spammed
> me,.. i don't want to encourage clicking the link, but unfortunately
> it's the only example i have of such a URL).
>
> Anyhow.. how does that URL work? I can't seem to resolve it to an actual
> IP address through nslookup.
>
That address is simply the IP address expressed as a 32 bit decimal
number. If you want to convert the address to the normal "botted quad"
notation it's a simple two step process.
1. convert the number to hex - 3520566060=D1D7932C
I did this with the Windows Calculator.
2. convert each pair of hex digits to decimal.
D1=209
D7=215
93=147
2C=44
Thus, 3520566060 = D1D7932C = 209.215.147.44
Ed Sawicki
ALC Press
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