[dns-operations] NXDOMAIN rewriting by lying resolvers (Was: new public DNS service: 18.104.22.168
ant+dnsop at teuchert.org
Tue Nov 21 16:48:06 UTC 2017
On Tue, Nov 21, 2017 at 05:14:17PM +0100, Stephane Bortzmeyer wrote:
> On Mon, Nov 20, 2017 at 01:04:44PM -0500,
> wbrown at e1b.org <wbrown at e1b.org> wrote
> a message of 32 lines which said:
> > a better test is to query for a totally bogus domain, and see what
> > you get back. Google will return NXDOMAIN, an ISP will usually take
> > you to a search page or the like.
> "Not all ISPs" (yes, this is a reference to recent political campaigns)
> In Europe, NXDOMAIN rewriting to a false address is extremely
> uncommon (and rightly so).
Deutsche Telekom, one of the biggest ISPs in Germany (biggest in Europe
according to some sources), is doing that. They call it "Navigationshilfe".
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