Thx for this share. But I'm not sure how Unbound is "speaking" with the roots DNS servers... Somewhere I've read that DNS queries can be forwarded by a "man in the middle", and the server operator can't be sure about this :s An ISP is able to do it with your "private server" hosted behind your ISP's router...
I see DNSsec to crypt DNS queries from a client to a server, but for sure it's not possible to use it with roots DNS servers... 16/10/2016 22:02, Tristan : > TL;DR, if I understand how Tor relays work, Unbound (or any local DNS > server) should see a request for example.com <http://example.com> > coming from localhost or 127.0.0.1. It answers the request, stores it > in cache just in case, rinse and repeat. The machine running the exit > relay is the one that makes the DNS request, so the only thing you'd > get from looking at the DNS cache would be a "Top 100 Websites This > Tor Relay Visits" sort of list. > > From what I could find, a DNS cache contains the hostname and its > associated IP address, nothing more. From what I understand, even if a > DNS cache saved the source of the request, it should save "127.0.0.1" > or "localhost" as the source, since exit nodes are the source of the > request, and simply forward the response back to the client. > > I couldn't find anything specific about Unbound, but it seems like > there isn't a proper way to read the DNS cache anyway unless you can > somehow decode the binary file. I suppose if you know the specific > cache file, you could copy it to a different machine with Unbound > installed, and possibly extract data from that, but this theory > assumes the cache is saved to the hard drive, and it's probably only > stored in RAM. -- Petrusko PubKey EBE23AE5 C0BF 2184 4A77 4A18 90E9 F72C B3CA E665 EBE2 3AE5
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