gabriel rosenkoetter on 10 Oct 2006 23:24:22 -0000


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Re: [PLUG] cname lookups


On Fri, Oct 06, 2006 at 02:19:08PM -0400, Sean C. Sheridan wrote:
> I'm trying to identify publicly accessible subdomains on a variety of .edu
> domains.  We're considering developing an "education search engine".

So... you're trying to locate publicly-accessible hosts providing
services other than HTTP[S] (which you could just get by descending
publicly-accessible web pages with an HTTP client)?

Is there some reason that you wouldn't do this through scanning IP
address ranges, rather than beating up DNS? (I mean, that's not
exactly considered neighborly, but you'll actually get some sort of
answers. Nobody in their right mind permits wholesale DNS XFER
except to domain servers they've listed publicly.)

-- 
gabriel rosenkoetter
gr@eclipsed.net

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